Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JW

John Werth — 14 Patents

H&H&Power: 8 patents #2 of 19Top 15%
ENEngelhard: 4 patents #94 of 518Top 20%
EXExide: 1 patents #15 of 29Top 55%
Knob Noster, MO: #1 of 4 inventorsTop 25%
Missouri: #1,337 of 23,789 inventorsTop 6%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
John Werth has been granted 14 US patents while listed as an inventor at H&Power. The first was granted in 1982 and the most recent in December 2016. John Werth ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list John Werth in Knob Noster, MO, US.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9510588 Game call 2016-12-06
6093501 Fuel cell using an aqueous hydrogen-generating process 2000-07-25
5925322 Fuel cell or a partial oxidation reactor or a heat engine and an oxygen-enriching device and method therefor 1999-07-20
5840270 Catalytic method of generating hydrogen 1998-11-24
5830426 Aqueous hydrogen generation process 1998-11-03
5690902 Hydrogen-powered automobile with in situ hydrogen generation 1997-11-25
5643352 Reactive iron material for use in a hydrogen-generating process in an electrical vehicle 1997-07-01
5629102 Electrical automobile having a fuel cell, and method of powering an electrical automobile with a fuel cell system 1997-05-13
5510201 Method of operating a fuel cell wherein hydrogen is generated by providing iron in situ 1996-04-23
4961151 Fuel cell/battery control system Jack Early 1990-10-02 $7,252,000
4945010 Cooling assembly for fuel cells Arthur Kaufman 1990-07-31 $7,757,000
4931947 Fuel cell/battery hybrid system having battery charge-level control Imre Fekete, deceased 1990-06-05 $7,611,000
4588661 Fabrication of gas impervious edge seal for a bipolar gas distribution assembly for use in a fuel cell Arthur Kaufman 1986-05-13 $4,024,000
4349614 Platinum third electrode to improve float polarization of standby batteries 1982-09-14