(19)Fresh off Patent
(45) Week of Oct 5, 2026 No. 5 3,852 lapsed 197 picks
No. 5 · USPTO batch of Oct 5, 2026

10 picks in Energy & batteries came off patent this week

Out of 3,852 patents the USPTO marked expired for unpaid fees, these are the strongest leads in energy & batteries, ranked by our opportunity score.

  1. 1

    Power management system that estimates per-outlet usage from total meter plus per-outlet current sensors

    A system for homes or small buildings that combines a single total power meter with current sensors on individual outlets to estimate each outlet’s power use. Current-sensing outlet...

    Energy & batteries US 10,063,094 lapsed Aug 28, 20267.5-yr fee missed
    74score / 100
    demand
    makeable
    novelty
    clear
  2. 2

    Solar air heater with channeled partitions creating isolated flow sections

    A roof- or wall-mounted solar air heater that divides its cavity into multiple largely isolated sections using parallel partitions that contain many parallel channels. Air is forced...

    Energy & batteries US 7,434,577 expired Oct 7, 2026full term
    72score / 100
    demand
    makeable
    novelty
    clear
  3. 3

    Leakage-reduction capacitor network for AC-to-DC power adapters

    A circuit for two-stage AC-to-DC power adapters that routes common-mode noise from the isolated secondary back to the primary while limiting dangerous high-voltage leakage onto the...

    Energy & batteries US 10,063,156 lapsed Aug 28, 20267.5-yr fee missed
    70score / 100
    demand
    makeable
    novelty
    clear
  4. 4

    Perforated flange insert that damps TXV, evaporator gurgle

    A tubular noise-reduction insert that fits into the refrigerant inlet between a thermal expansion valve (TXV) housing and an evaporator. It is a hollow body with a flange on one end and...

    Energy & batteries US 10,060,659 lapsed Aug 28, 20267.5-yr fee missed
    70score / 100
    demand
    makeable
    novelty
    clear
  5. 5

    Flat-roof mount for solar modules that sticks down with bitumen pads

    A preassembled, two-rail support that holds one or more photovoltaic or thermal solar modules above a flat roof and fastens to the roof with broad, plane-parallel support sections that...

    Energy & batteries US 8,820,030 lapsed Sep 2, 202611.5-yr fee missed
    69score / 100
    demand
    makeable
    novelty
    clear
  6. 6

    Waste air flow capture system Pro

    The write-up, demand check and manufacturing notes are for Pro members.

    Energy & batteries US 10,060,667 lapsed Aug 28, 20267.5-yr fee missed
    ··score / 100
  7. 7

    Floating type humidifier Pro

    The write-up, demand check and manufacturing notes are for Pro members.

    Energy & batteries US 10,060,640 lapsed Aug 28, 20267.5-yr fee missed
    ··score / 100
  8. 8

    Solar heating system with overheating protection Pro

    The write-up, demand check and manufacturing notes are for Pro members.

    Energy & batteries US 8,820,315 lapsed Sep 2, 202611.5-yr fee missed
    ··score / 100
And 2 more this week. Pro members can read every pick in full, with demand checks, filters and a CSV export of the whole list. See Pro, $6/month in beta