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

James Kuhar — 11 Patents

QUQuantum: 10 patents #31 of 703Top 5%
CGCallaway Golf: 1 patents #252 of 359Top 75%
San Diego, CA: #3,962 of 23,606 inventorsTop 20%
California: #56,011 of 386,348 inventorsTop 15%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
James Kuhar has been granted 11 US patents while listed as an inventor at Quantum. The first was granted in 2004 and the most recent in March 2017. James Kuhar ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list James Kuhar in San Diego, CA, US.

Patents per Year

Patents granted per year, 2004 to 2017Bar chart with a peak of 3 patents in 2005.peak 32004: 2 patents20042005: 3 patents20052006: 1 patents20062007: 1 patents20072008: 3 patents20082017: 1 patents2017

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9586105 Weighted golf club head Joshua D. Westrum, Joseph Mehren, Chris J. Wieland, Brooks Roche, Scott R. Manwaring +2 more 2017-03-07 $6,374,000
7427043 Tape cartridge with multiple keying features Stephen J. Stamm, Don Armstrong 2008-09-23
7414803 Write protected magnetic storage media and associated methods Daniel Skaar, Fernando Moreira 2008-08-19 $4,650,000
D569103 Media cartridge protective case David T. Hoge, William E. Faulkner 2008-05-20
7156335 Mam assembly process and features Stephen J. Stamm 2007-01-02
D523338 Shipping tray for multiple cartridges David T. Hoge 2006-06-20
6929208 Cartridge housing for inhibiting damage to recording media Stephen J. Stamm 2005-08-16 $5,537,000
6918554 Tape cartridge format identification in a single reel tape handling device Stephen J. Stamm, Michael Barrell 2005-07-19 $5,803,000
6902128 Buckler assembly having a drive leader sensor in a tape drive 2005-06-07 $5,372,000
D491564 Tape cartridge Richard Chaney, Dana Kritter, John Goode, Stephen J. Stamm, David H. Pitcher 2004-06-15
D486498 Tape cartridge Stephen J. Stamm, John Goode, Dave Pitcher 2004-02-10