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USPTO Patent Rankings Data through Dec 31, 2025
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Erwin Kulmann — 2 Patents

BRBosch Rexroth: 2 patents #31 of 242Top 15%
Markgröningen, DE: #115 of 205 inventorsTop 60%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Erwin Kulmann has been granted 2 US patents while listed as an inventor at Bosch Rexroth. The first was granted in 2004 and the most recent in October 2005. Erwin Kulmann ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Erwin Kulmann in Markgröningen, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6953055 Pneumatic gate valve with an injection-molded valve housing Klaus Bergmann 2005-10-11
6834676 Pneumatic slide valve with split valve housing of plastic 2004-12-28