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

Marion E. Cox — 4 Patents

Cupertino, CA: #2,992 of 6,989 inventorsTop 45%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Marion E. Cox has been granted 4 US patents. The first was granted in 1981 and the most recent in August 2013. Marion E. Cox ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Marion E. Cox in Cupertino, CA, US.

Patents per Year

Patents granted per year, 1981 to 2013Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19812004: 1 patents20042006: 1 patents20062013: 1 patents2013

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8501463 Anaerobic production of hydrogen and other chemical products Laura M. Nondorf, Steven M. Cox 2013-08-06
7037254 Controlled environment device Michael O'Connor 2006-05-02
6685622 Controlled environment device Michael O'Connor 2004-02-03
4262091 Preparation of contaminant free containers of culture medium 1981-04-14