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

James Kropkowski — 3 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Fair Lawn, NJ: #75 of 248 inventorsTop 35%
New Jersey: #23,671 of 69,400 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
James Kropkowski has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 1989 and the most recent in September 1991. James Kropkowski ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list James Kropkowski in Fair Lawn, NJ, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5046493 Nasal dispenser Jesse L. Colodner 1991-09-10
4921249 Boardgame combining two levels of play Jesse L. Colodner 1990-05-01
4877246 Mixing and dispensing apparatus for game 1989-10-31