petMulti-input multi-output communication system, transmitter, 0mopersonalApparatus to improve the efficiency of internal combustion e0mopetUsing a first device to verify whether a second device is co0mogamesGame table television and projector system, and method for s0mopersonalRecombinant monovalent antibodies and methods for production0mopetMethod, system and apparatus for logging into a communicatio0molightingSustaining a fleet of configuration-controlled assets0mopetMethod for configuring a mobile communication network includ0mopatentMethod of making a co-extruded, multi-layered battery separa0mopatentComposite hemocompatible material and method for its product0mopatentMethod for fermentation and culture, fermented plant extract0mopetMulti-input multi-output communication system, transmitter, 0mopersonalApparatus to improve the efficiency of internal combustion e0mopatentMethod of reducing loading failure for a prosthetic componen0mopatentIn-flight campaign optimization0mopetUsing a first device to verify whether a second device is co0mopetMulti-input multi-output communication system, transmitter, 0mopersonalApparatus to improve the efficiency of internal combustion e0mopetUsing a first device to verify whether a second device is co0mogamesGame table television and projector system, and method for s0mopersonalRecombinant monovalent antibodies and methods for production0mopetMethod, system and apparatus for logging into a communicatio0molightingSustaining a fleet of configuration-controlled assets0mopetMethod for configuring a mobile communication network includ0mopatentMethod of making a co-extruded, multi-layered battery separa0mopatentComposite hemocompatible material and method for its product0mopatentMethod for fermentation and culture, fermented plant extract0mopetMulti-input multi-output communication system, transmitter, 0mopersonalApparatus to improve the efficiency of internal combustion e0mopatentMethod of reducing loading failure for a prosthetic componen0mopatentIn-flight campaign optimization0mopetUsing a first device to verify whether a second device is co0mo
Catalyst Edge · Patent Sunset Tracker

Inventions entering
the public domain

477704 US patents are about to expire — and the next one Isabella Gilbert wrote is probably in here. Public domain means anyone can manufacture and sell. The next Dimple Maker. The next viral $15-on-Etsy product.

477704
tracked
14
days to nearest
77
consumer-class
500
this quarter

Three landmines. Three checks per pick.

Running these three checks before you manufacture is the moat — our biggest unfair advantage over every other "expired patent" list on the internet. Automated verification is shipping now via the USPTO Open Data Portal; once a pick goes through the guardrails it is marked VERIFIED, NEEDS REVIEW, or DO NOT TOUCH. Until then, every pick links you straight to the USPTO databases you can run by hand.

01

Is the patent actually expired?

Utility = 20y from filing, design = 14y from grant. But a continuation-in-part or reissue on a modern variant might still be active. Maintenance fees that lapsed also kill enforceability.

⚠ check via USPTO PAIR
02

Is the brand still trademarked?

Trademarks last forever. The patent on the original Hula Hoop expired decades ago — but Hula Hoop is still a registered Wham-O trademark. Sell the toy under any other name.

⚠ check via USPTO TSDR API
03

Is there an active design-patent variant?

Lululemon vs Costco (2025) — design-patent enforcement on modern variants is escalating. A 2018 design patent on the same product family can trigger TROs + frozen accounts.

⚠ check via USPTO design-patent search

In 1937, Isabella Gilbert patented a beauty machine.

Her dimple maker — two metal arms with marble nubs — was supposed to create dimples by pinching cheeks. The American Medical Association hated it. Her patent expired sixty-four years ago.

Today: 60M+ TikTok views. $15 on Etsy. Manufacturing cost in Yiwu: under $2.

This is the playbook. Find an expired patent. Manufacture cheaply. Sell on TikTok Shop. The product itself is the marketing.

60M
TikTok views
$15
retail
9×
margin
500
expiring this quarter
< 90 days
0
next quarter
90-180 days
0
next 12 months
180-365 days
0
12-36 months out
forward

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