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

Mark Stephens — 8 Patents

APAdelaide Research & Innovation Pty: 1 patents #24 of 106Top 25%
Caterpillar: 1 patents #4,457 of 8,398Top 55%
Goleta, CA: #219 of 1,303 inventorsTop 20%
California: #74,834 of 386,348 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Mark Stephens has been granted 8 US patents while listed as an inventor at Adelaide Research & Innovation Pty. The first was granted in 1990 and the most recent in November 2022. Mark Stephens ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Mark Stephens in Goleta, CA, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11506480 Measurement system 2022-11-22
11105609 Measurement system 2021-08-31
9719725 Heat treatment roller hearth furnace drive system 2017-08-01 $20,485,000
9097601 Method and system for assessment of pipeline condition Martin F. Lambert, Angus R. Simpson, Young Il Kim, John Vitkovsky 2015-08-04
5787461 High speed optical disk drive caching executable and non-executable data 1998-07-28
5202530 Light armor piercing automatic rifle 1993-04-13
5078043 Silencer 1992-01-07
4977815 Self cleaning automatic machine pistol and silencer for the same 1990-12-18