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

Peter A. Freeman — 2 Patents

Berlin, MD: #5 of 29 inventorsTop 20%
Maryland: #13,510 of 35,612 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Peter A. Freeman has been granted 2 US patents. All of these patents were granted in 1981. Peter A. Freeman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Peter A. Freeman in Berlin, MD, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4308137 Water aeration and circulation apparatus 1981-12-29
4292540 Wind-powered impeller-mixer Worthington J. Thompson 1981-09-29