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USPTO Patent Rankings Data through Dec 31, 2025
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Keith E. Gleasman — 28 Patents

TOTorvec: 19 patents #1 of 12Top 9%
TWThe Gleason Works: 2 patents #39 of 120Top 35%
UNUnknown: 2 patents #12,644 of 83,584Top 20%
Fairport, NY: #61 of 1,225 inventorsTop 5%
New York: #4,459 of 115,490 inventorsTop 4%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
Keith E. Gleasman has been granted 28 US patents while listed as an inventor at Torvec. The first was granted in 1985 and the most recent in April 2013. Keith E. Gleasman ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list Keith E. Gleasman in Fairport, NY, US.

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
RE44158 Full traction differential with hybrid gearing James Y. Gleasman, Paul W. Suwijn 2013-04-16
7824289 Steer drive for tracked vehicles James Y. Gleasman, Donald Gabel, Matthew Wrona 2010-11-02
7635255 Long piston hydraulic machines Vernon E. Gleasman, Matthew Wrona 2009-12-22
7632188 Spherical universal coupling Paul W. Suwijn 2009-12-15
7575534 Transmission with resistance torque control James Y. Gleasman, Donald Gabel 2009-08-18
7540821 Full traction differential with hybrid gearing James Y. Gleasman, Paul W. Suwijn 2009-06-02
7475617 Orbital transmission with geared overdrive James Y. Gleasman, Matthew Wrona 2009-01-13
7416045 Dual hydraulic machine transmission Matthew Wrona 2008-08-26
7367637 Endless track for high speed multi-terrain vehicles 2008-05-06
6983680 Long-piston hydraulic machines Vernon E. Gleasman, Matthew Wrona 2006-01-10
6783476 Compact full-traction differential Vernon E. Gleasman 2004-08-31
6748817 Transmission with minimal orbiter James A. Gleasman, Vernon E. Gleasman 2004-06-15
6554729 Steer-drive for boats and planes Vernon E. Gleasman, Warren R. Alexander, Robert C. Horton 2003-04-29
6342021 Steer-drive for vehicles Vernon E. Gleasman, Warren R. Alexander 2002-01-29
6241327 Endless track for high speed multi-terrain vehicles Vernon E. Gleasman 2001-06-05
6135220 Modular system for track-laying vehicle Vernon E. Gleasman 2000-10-24
5878492 Methods for shaping the teeth of spherical gears Vernon E. Gleasman 1999-03-09
5647802 Variable-angle gears Vernon E. Gleasman 1997-07-15
5613914 Universal coupling Vernon E. Gleasman 1997-03-25
5513553 Hydraulic machine with gear-mounted swash-plate Vernon E. Gleasman 1996-05-07
5440878 Variable hydraulic machine Vernon E. Gleasman, Arthur H. McElroy, II, David W. Porter 1995-08-15
5186692 Hydromechanical orbital transmission Vernon E. Gleasman 1993-02-16
4895052 Steer-driven reduction drive system Vernon E. Gleasman, James Y. Gleasman 1990-01-23
4776235 No-slip, imposed differential reduction drive Vernon E. Gleasman, James Y. Gleasman 1988-10-11
4776236 No-slip, imposed differential Vernon E. Gleasman, James Y. Gleasman 1988-10-11