Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ravindra Jwalapathy — 23 Patents

Delphi Technologies: 22 patents #56 of 4,124Top 2%
General Motors: 1 patents #9,441 of 18,328Top 55%
Saginaw, MI: #17 of 671 inventorsTop 3%
Michigan: #3,302 of 86,293 inventorsTop 4%
Overall (All Time): #178,160 of 4,157,543Top 5%
23 Patents All Time
Ravindra Jwalapathy has been granted 23 US patents while listed as an inventor at Delphi Technologies. The first was granted in 2003 and the most recent in November 2010. Ravindra Jwalapathy ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list Ravindra Jwalapathy in Saginaw, MI, US.

Patents per Year

Patents granted per year, 2003 to 2010Bar chart with a peak of 7 patents in 2006.peak 72003: 1 patents20032004: 4 patents20042005: 3 patents20052006: 7 patents20062007: 3 patents20072008: 4 patents20082010: 1 patents2010

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7827880 Steering column assembly with a quick release bolt Richard K. Riefe, Marvin V. Manwaring, Ray Armstrong, Jason R. Ridgway 2010-11-09
7434840 Telltale indicator for adaptive energy absorbing system Marvin V. Manwaring, Richard K. Riefe, Ray Armstrong, Lee M. Tinnin, Robert L. Stearns 2008-10-14
7347451 Pre-crash column release Richard K. Riefe, Minoo J. Shah, Ray Armstrong 2008-03-25
7331608 Electrically actuated steering column mechanism Ray Armstrong, Richard K. Riefe, Marvin V. Manwaring 2008-02-19
7325834 Adaptive strap energy absorber with pin puller Marvin V. Manwaring, Richard K. Riefe, Ray Armstrong, Lee M. Tinnin 2008-02-05
7229096 Adaptive energy absorbing system using pin pullers Marvin V. Manwaring, Richard K. Riefe, Ray Armstrong, Lee M. Tinnin 2007-06-12
7228755 Release capsule for steering column Ray Armstrong, Richard K. Riefe 2007-06-12
7178422 Electrical tilt and telescope locking mechanism Ray Armstrong, Philip J. McCarthy 2007-02-20
7137499 Steering column mounted power transmission shifter Richard K. Riefe, Tamara J. Reppuhn, Michael C. Vermeersch, David Michael Byers 2006-11-21
7124866 Adaptive energy absorber Marvin V. Manwaring, Richard K. Riefe, Ray Armstrong, Lee M. Tinnin 2006-10-24
7118131 Adaptive energy absorber Marvin V. Manwaring, Richard K. Riefe, Ray Armstrong, Lee M. Tinnin 2006-10-10
7093855 Steering column assembly having clamping mechanism Marvin V. Manwaring, Lee M. Tinnin, Ray Armstrong 2006-08-22
7077433 Three stage rotary strap extruder Marvin V. Manwaring, Lee M. Tinnin, Ray Armstrong 2006-07-18
7077432 Steering column assembly having break-away device Marvin V. Manwaring, Richard K. Riefe, Ray Armstrong, Melvin L. Tinnin 2006-07-18
7055860 Electrically actuated steering column mechanism Ray Armstrong, Richard K. Riefe, Marvin V. Manwaring 2006-06-06
6948741 Telescoping steering column assembly Marvin V. Manwaring, Melvin L. Tinnin, Ray Armstrong 2005-09-27 $1,858,000
6877775 Adaptive energy absorption system Marvin V. Manwaring, Lee M. Tinnin, Ray Armstrong, Richard K. Riefe 2005-04-12 $876,000
6857660 Radial spring lock-tilt head Marvin V. Manwaring, Melvin L. Tinnin, Ray Armstrong 2005-02-22 $3,605,000
6802536 Adaptive energy absorbing device for a steering column Xiaoyu Li, Marvin V. Manwaring, Melvin L. Tinnin, Ray Armstrong 2004-10-12 $956,000
6799486 Interactive energy absorbing system Marvin V. Manwaring, Melvin L. Tinnin 2004-10-05 $1,100,000
6761376 Steering column for a vehicle Richard K. Riefe, Marvin V. Manwaring, Ray Armstrong, Stephen W. Skillman 2004-07-13 $2,843,000
6749222 Responsive energy absorbing device for steering columns Marvin V. Manwaring, Melvin L. Tinnin, Ray Armstrong 2004-06-15 $1,080,000
6659504 Steering column for a vehicle Richard K. Riefe, Marvin V. Manwaring, Ray Armstrong, Stephen W. Skillman 2003-12-09 $5,891,000