NEWS

Doctrine of Equivalents

The Doctrine of Equivalents is a legal principle in U.S. patent law that allows a court to find infringement even when the accused product or process does not literally fall within the scope of a patent claim, as long as it is equivalent in a meaningful way. The Function-Way-Result (FWR) test is one of the primary tools used to assess this equivalence.

Function-Way-Result (FWR) Test Explained
Under the FWR test, a court or jury evaluates whether the accused product or process:

  1. Performs substantially the same function as the claimed invention.
  2. Operates in substantially the same way as the claimed invention.
  3. Achieves substantially the same result as the claimed invention 

If all three criteria are met, the accused product or process may infringe under the doctrine of equivalents.

The classic analogy is: suppose a patent claim covers a method of joining two wooden planks together “using a nail.” An accused product instead uses a screw to fasten the planks. Although the literal language of the claim specifies a nail, a court applying the doctrine of equivalents could find infringement. That is because both the nail and the screw perform the same function of fastening the planks together, they operate in substantially the same way by penetrating the wood and holding the pieces in place, and they achieve the same result of creating a secure joint. Thus, under the Function-Way-Result test, a screw may be considered an equivalent to a nail in this context.

Note that the Doctrine of Equivalents is generally not available for claim elements that were narrowed during prosecution for reasons related to patentability, unless the patentee can successfully rebut the presumption of estoppel. However, if the amendment was not related to patentability, or the patentee can show the change was tangential, DOE may still apply.

Several clients have asked about this recently, so this article can provide some insight.

The USPTO has suspended expedited examination of design applications

The PTO had suspended expedited examinations of design applications back on April 17, 2025, but has issued a final rule to eliminate them altogether, as part of effort “to combat fraud”. The announcement said “requests for expedited examination of design applications have surged 560% in recent years, caused in large part by fraudulent applications.”

Apparently, the largest source of these fraudulent applications are coming from China, but why?

The Chinese government has been offering subsidies for foreign trademark and patent filings, which effectively incentivizes filling applications, even when there is no intent to use the mark or pursue protection.

This is, as the PTO acknowledges by its actions, a burden on the system and potentially harms legitimate applicants.

The Chinese government’s subsidies of foreign IP filings has been a concern for the US for over a decade. Chinese applicants may be earning approximately $800 USD in subsidies, for a filing fee of $225-275, meaning it is profitable to send crowds of filings to the US.

The question of motives is a concern. Is this an attempt to undermine the US trademark registration system? Or is it motivating by China transitioning from being primarily a manufacturer to an innovator?
Investing heavily in foreign IP may be an attempt to increase international competitiveness.

But there has been a huge influx of illegitimate filings with doctored specimens- for example the same picture of a shoe with 10 different marks on it. As a counterpoint, if the Chinese central government sets the targets, it is up to the local governments to achieve those targets. This could create incentives for the local officials to prize hitting number-of-filing quotas, while overlooking quality. Thus one could argue that the Chinese central government isn’t trying to undermine the US per se, it may simply be a by-product of the race to establish themselves more solidly in the international market.

Whatever the motives, the increase IS a burden and the USPTO is taking steps to remedy the situation. 

USPTO to Charge Extra for Late Continuation Applications — Don’t Get Caught by the Six- and Nine-Year Traps

The U.S. Patent and Trademark Office (USPTO) just rolled out a new “late-filing penalty” for continuation applications that come in six or nine years after the earliest priority date in the family.

This isn’t just a cash grab. The USPTO has likely decided that ultra-late continuations — sometimes filed a decade after the original application — are being used to keep claim scope in flux long after the market has settled. That makes life unpredictable for competitors, and the Office is signaling it wants to curb that practice.

First, in case you need a reminder of what a continuation application is, think of it as keeping the door open. You’ve got an original patent application on file. A continuation is a new application that uses the same description but lets you go after different claims — broader, narrower, or just different angles. The beauty is you keep the original filing date, which is gold in patent land.

The new price of waiting

  • Large entities: $2,700 (six years) / $4,000 (nine years)
  • Small entities: $1,080 (six years) / $1,600 (nine years)
  • Micro entities: $540 (six years) / $800 (nine years)

These numbers aren’t small, and they’re designed to get your attention. If you want to avoid paying them, you’ll need to plan ahead.

This matters more than you think because patent prosecution is slow — sometimes glacial. In complex tech, pharma, or life sciences, it’s normal to be past the six-year mark before your first U.S. application is even allowed. File your continuation then, and you’re automatically in surcharge territory.

Questions to ask before you hit six or nine years

  • Is this a blockbuster product? Keep a continuation pending — it’s the best way to adapt and keep competitors in check.
  • Is anyone sniffing around your market? Continuations let you tailor claims midstream in litigation.
  • Do you have features you never claimed? File early and lock them in without paying the extra fee.
  • Did the USPTO restrict your application? That means they spotted more than one invention. File a divisional before the clock runs out.

Six-Year vs. Nine-Year Game Plan

Goal: Keep strategic patent options alive without paying the USPTO’s new “late continuation” surcharges.

At 5½ Years from Earliest Priority Date

  • Review portfolio: Identify any cases where you might want broader or different claims.
  • Flag restrictions: Look for USPTO restriction requirements — these often signal unclaimed inventions.
  • Decide early: File continuations/divisionals now if there’s any chance you’ll want them.

Six-Year Mark (Penalty threshold #1)

  • If you file after today → you pay $2,700 / $1,080 / $540 (large/small/micro).
  • If the case is valuable or the market is hot, consider filing before today to avoid this first surcharge.

Between Six and Nine Years

  • Monitor product and market developments closely.
  • Keep at least one application alive for critical cases.

Nine-Year Mark (Penalty threshold #2)

  • Filing now costs $4,000 / $1,600 / $800.
  • By this point, you should already have filed anything you need — paying this is last-resort territory.

Don’t let allowance dictate when you file continuations. Let strategy dictate — and let the clock tell you when it’s time to move.

From Brain Scans to Rain Scans: How Tumor-Detecting AI Is Predicting the Weather

In a twist that sounds like science fiction, researchers in Xi’an, China have taken artificial intelligence designed to find tumors in brain scans and taught it to forecast the weather—fast. The result? Five-day regional forecasts that can be generated almost instantly.

The secret lies in deep learning models that were originally built to spot tiny anomalies in medical images. By retraining these systems on historic weather data, the team discovered they could recognize atmospheric patterns with exceptional accuracy—even in areas where weather data is scarce.

At the heart of the method is something called cascade prediction. Instead of trying to predict all five days at once, the AI breaks the job into smaller chunks, predicting shorter time spans and stacking the results. This clever sequencing cuts down cumulative errors, boosting accuracy by nearly 20% compared to standard techniques.

To make it even smarter, the system adds what the researchers call “learnable Gaussian noise,” a fancy way of saying the AI adjusts for local quirks in the weather. Trained on 70 different weather variables collected every six hours between 2007 and 2016, the model has shown particularly strong performance across East Asia.

Traditional high-accuracy weather models are computationally heavy and often out of reach for smaller meteorological services. This approach is faster, cheaper, and far more accessible—opening the door for better forecasting in places that need it most.

Sometimes, innovation comes from thinking sideways: in this case, turning a brain tumor hunter into a rainstorm spotter.

Bored Apes, Confused Courts, and the Question of Whether NFTs Are “Goods”

If you’ve ever wondered whether the law treats an NFT like a Beanie Baby, a baseball card, or just a bunch of ones and zeros, the Ninth Circuit just gave us an answer: yes, NFTs are “goods” under the Lanham Act.

That little detail matters because it opens the door for trademark law to march right into Web3. And in this case, the march was led by Yuga Labs, creators of the Bored Ape Yacht Club (BAYC) — you know, the cartoon apes that double as pricey status symbols, social club memberships, and occasionally, celebrity conversation pieces.

On the other side of the ring: Ryder Ripps and Jeremy Cahen, who launched their own “Ryder Ripps Bored Ape Yacht Club” (RR/BAYC) using the same ape images and IDs, slapped “Bored Ape Yacht Club” on the smart contract name, and claimed it was all satire to protest Yuga’s alleged flirtations with bad symbolism and worse politics.

Yuga sued for trademark infringement, cybersquatting, and a few other greatest hits. The district court handed Yuga a win on the big-ticket claims, called it willful infringement, and hit the defendants with profit disgorgement, statutory damages, and attorneys’ fees — plus a permanent injunction for good measure.

But the Ninth Circuit wasn’t buying the “open-and-shut” part. Here’s the quick breakdown:

  • NFTs are goods — they’re bought and sold in online marketplaces, confer perks, and have value independent of any “tangible” packaging.
  • BAYC marks are enforceable — Yuga didn’t lose them by selling NFTs, granting broad art rights, or allegedly failing to police the brand.
  • Fair use and First Amendment defenses failed — calling it satire doesn’t help if you’re actually using the marks to sell your own product.
  • BUT the district court skipped a thorough confusion analysis. Trademark infringement isn’t just “we see the same name.” You have to walk through the Sleekcraft factors, and the Ninth Circuit said, “Nope, you didn’t do that.” So back it goes.
  • Cybersquatting? Not this time — “rrbayc.com” wasn’t close enough to “BAYC,” and “apemarket.com” wasn’t confusingly similar to “Bored Ape” (and Yuga abandoned “Ape” as a standalone mark).
  • Defendants’ counterclaims? Dead. The DMCA claims fizzled because even if Yuga was sloppy in takedown notices, it wasn’t a bad-faith misrepresentation. And the copyright declaratory judgment request was dismissed with prejudice.


This isn’t just about cartoon apes. The Ninth Circuit just solidified that NFTs are commercial goods for trademark purposes — so yes, the name you give your pixelated penguin project matters. But even if you own the mark, you don’t get to skip the hard work of proving consumer confusion.

And for those trying to wrap satire, protest, or just-for-laughs into a money-making NFT drop? Courts aren’t amused when the “joke” looks exactly like the thing you’re “joking” about and you’re charging admission at the door.

USPTO Clarifies AI and Machine Learning Patent Eligibility

The USPTO issued a memorandum on Aug 2, 2025 to help examiners assess subject matter eligibility in software-related inventions, especially those involving AI and machine learning. The memo does not change existing rules but reinforces current guidance in the MPEP and the 2024 AI Subject Matter Eligibility Update.

Key points:

  • Step 2A Prong One: Examiners must determine if claims recite a judicial exception (abstract ideas, laws of nature, or natural phenomena). Special focus is given to the mental process category, stressing that only processes that can practically be performed by the human mind count as abstract ideas. Claims that merely “involve” but do not “recite” such exceptions remain eligible. (Check the end of this article if you want help understanding between involving and reciting)
  • Step 2A Prong Two: If a judicial exception is recited, examiners must evaluate whether the claim as a whole integrates it into a practical application. This includes checking if it improves computer functioning or another technical field, rather than just telling a computer to “apply it.”
  • Examiners should avoid oversimplifying claims and only issue 101 rejections when ineligibility is more likely than not. (101 rejections cover subject matter that the law doesn’t allow patents on, like ideas that are too abstract or laws of nature, for example)
  • A complete examination must address all statutory requirements (101, 102, 103, 112) in the first Office action.
  • The USPTO provides training and examples (including AI-focused ones) to guide eligibility analysis.

In short: the memo emphasizes careful distinction between abstract ideas and true technological improvements.

Here is a link to the full article:
https://www.uspto.gov/sites/default/files/documents/memo-101-20250804.pdf

PS: These memos are guidelines, not mandates.

Recite v involve
So, for a really basic example using a GPS navigation: a claim that says “Determine the shortest path using Dijkstra’s algorithm”, directly recites the algorithm (an abstract idea).

A claim that says “Provide turn-by-turn navigation on a mobile device” involves math and algorithms, but it doesn’t claim the algorithm itself.

China Finally Gets Serious About Fair Play in the Marketplace

For years, China’s business environment has been a bit like the Wild West—only with more knockoffs, keyword hijacking, and fake online reviews than a shady eBay seller convention. If you built a brand, it was open season for imitators to leech off your reputation. Search for your product online, and odds are you’d find some “similar” listing piggybacking off your trademark as a keyword. And if you complained? Well, good luck with that.

That’s why the newly revised Anti-Unfair Competition Law—passed June 27, 2025, and taking effect October 15—marks a pretty significant pivot.

This isn’t just another set of rule tweaks. It’s a sign that Beijing has recognized several big realities:

  1. The old law was written for an analog economy, not the algorithmic one we live in now.
    Back in the ’90s, unfair competition was about copying product packaging or running misleading ads. Fast forward to today, and the battlefield is dominated by platform algorithms, data scraping, and SEO manipulation. The old law simply wasn’t built to handle things like “keyword squatting” or “comment farming,” and bad actors took full advantage.
  2. China’s digital economy can’t thrive if no one trusts the playing field.
    The government wants to be a global leader in AI, e-commerce, and fintech. But you can’t lure serious investment—domestic or foreign—if innovators fear their ideas will be swiped and their traffic diverted by clever cheats. Tightening the rules helps build credibility with both entrepreneurs and trading partners.
  3. Small and medium-sized enterprises were getting crushed.
    Large platforms and corporations have been using their clout to force predatory payment terms, undercut prices below cost, and lock smaller players into unfair conditions. The revised law directly tackles this “payment term bullying” and abusive platform rule-making. That’s not just good policy—it’s survival gear for keeping the SME sector alive.
  4. Data is the new gold, and China is fencing it in.
    In the old days, you stole a competitor’s design. Today, you siphon their user data. The law now treats data rights as a central part of fair competition—banning unauthorized harvesting, coercive acquisition, and the weaponizing of platform algorithms to kneecap rivals.

This isn’t China suddenly finding religion on fair play. It’s about keeping their digital economy competitive, making sure innovation happens in the open market—not in the shadows. And it’s a reminder that when governments feel the growth engine sputtering, they’re suddenly a lot more interested in protecting the people who actually build the engines.

For companies doing business in China, this is both a shield and a warning. It’s a shield against bad-faith actors who’ve been gaming the system for years. But it’s also a warning that compliance just got more complicated—and “we didn’t know that was illegal” won’t fly after October 15.