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

David Gray — 4 Patents

Xerox: 2 patents #3,932 of 8,622Top 50%
University of California: 1 patents #8,022 of 18,278Top 45%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Corona, CA: #345 of 1,452 inventorsTop 25%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
David Gray has been granted 4 US patents while listed as an inventor at Xerox. The first was granted in 1998 and the most recent in December 2015. David Gray ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David Gray in Corona, CA, US.

Patents per Year

Patents granted per year, 1998 to 2015Bar chart with a peak of 2 patents in 2015.peak 21998: 1 patents19982000: 1 patents20002015: 2 patents2015

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9223271 Determining high toner usage Andrew S. Noren, Simon Gray, Keith Morgan 2015-12-29 $3,331,000
9176446 Determining media size by monitoring usage Andrew S. Noren, Simon Gray 2015-11-03 $2,666,000
6122846 Force monitoring shoe Frank B. Gray, John L. Parris, Raimer G. Riffert 2000-09-26
5849215 Highly ordered nanocomposites via a monomer self-assembly in situ condensation approach Douglas L. Gin, Walter Fischer, Ryan C. Smith 1998-12-15