Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Hammelmann — 2 Patents

BLBendix Limited: 1 patents #237 of 548Top 45%
BKBleistahl-Produktions Gmbh & Co Kg: 1 patents #9 of 11Top 85%
Minoa, NY: #7 of 21 inventorsTop 35%
New York: #49,169 of 115,490 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Robert Hammelmann has been granted 2 US patents while listed as an inventor at Bendix Limited. The first was granted in 1983 and the most recent in April 2022. Robert Hammelmann ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert Hammelmann in Minoa, NY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11311936 Valve seat ring Ekkehard Kohler, Dirk Emde, Ingwar Hunsche, Christian Blecking, Anna Seyfarth 2022-04-26
4411634 Flexible coupling having molded plastic flexible diaphragms 1983-10-25