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USPTO Patent Rankings Data through Dec 31, 2025
JM

John M. Marshall — 6 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
ISInland Steel: 1 patents #62 of 125Top 50%
Crown Point, IN: #30 of 210 inventorsTop 15%
Indiana: #6,140 of 33,936 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
John M. Marshall has been granted 6 US patents while listed as an inventor at Unknown. The first was granted in 1981 and the most recent in February 2003. John M. Marshall ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list John M. Marshall in Crown Point, IN, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6524284 Medical injection patch 2003-02-25
5211628 Syringe with automatic retracting needle 1993-05-18
4848138 Window gas monitor 1989-07-18
4755800 Window security device Donald D. Snyder 1988-07-05
4633233 Window security device James Hall 1986-12-30
4253644 Fluid closure for and method of preventing flow through an opening in a fluid and particulate confining and conveying structure Timothy A. Veslocki, James J. Sulicz 1981-03-03 $4,259,000