JK

John Hugh Kerr

KH Ker-Train Holdings: 19 patents #1 of 1Top 100%
Overall (All Time): #191,070 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
11867238 One-to-one torque coupling 2024-01-09
10730552 Tracked-vehicle regenerative steering differential 2020-08-04
10704604 One-to-one torque coupling 2020-07-07
10113595 Concentric V-groove coupling 2018-10-30
9732803 Concentric V-groove coupling 2017-08-15
8764597 Concentric V-groove coupling 2014-07-01
7188719 All gear infinitely variable transmission 2007-03-13
6849023 All gear infinitely variable transmission 2005-02-01
6766891 Power transfer device 2004-07-27
6691847 Power transfer device 2004-02-17
6669594 Coplanar reverted gear train loop 2003-12-30
6637313 Rotary pump 2003-10-28
6446776 Spiral-type coupling 2002-09-10
6418810 Coplanar reverted gear train loop 2002-07-16
6409001 Full-complement multi-directional coupling 2002-06-25
6367604 Power transfer device 2002-04-09
6129189 Spiral type one-way clutch 2000-10-10
6126566 Coplanar reverted gear train loop 2000-10-03
5638931 Automotive accessory drive pulleys incorporating spiral type one-way clutch 1997-06-17
4656882 Incrementally variable single countershaft transmission 1987-04-14
4559848 Incrementally variable transmission 1985-12-24
4341294 Spiral type one-way clutch assembly 1982-07-27