(19)Fresh off Patent
(45) Week of Oct 19, 2026 No. 7 3,667 lapsed 70 listed
No. 6 · USPTO batch of Oct 12, 2026

3 energy & batteries patents lapsed this week

Selected from 3,760 patents the USPTO recorded as expired for unpaid fees, ranked by opportunity score. The summaries and most of each score are generated by AI.

  1. 1

    Floating humidifier unit that floats in an open-top water tank

    A floating humidifier assembly that sits and floats on water inside an open-top water tank. The assembly includes a floating body with a water inflow hole, a detachable humidifier case...

    Energy & batteries US 10,066,846 lapsed Sep 4, 20267.5-yr fee missed
    66score / 100
    demand
    easy to make
    novelty
    clear
  2. 2

    Rectangular battery pack with snap-lock metal cover

    A rectangular lithium secondary battery (core pack) is housed in a plastic case body and sealed by a stainless-steel upper cover that mechanically snaps into locking grooves in the...

    Energy & batteries US 7,479,758 expired Oct 13, 2026full term
    62score / 100
    demand
    easy to make
    novelty
    clear
  3. 3

    A vertical-pivot wing turbine (PAVA) for wind or water

    A rotating turbine assembly with multiple wing assemblies that pivot about shafts parallel to the central drive shaft to present a broad face to incident flow in the drive quadrant and...

    Energy & batteries US 8,829,704 lapsed Sep 9, 202611.5-yr fee missed
    55score / 100
    demand
    easy to make
    novelty
    clear