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Derek Richner — 2 Patents

HDHand Tool Design: 2 patents #11 of 29Top 40%
Whately, MA: #4 of 6 inventorsTop 70%
Massachusetts: #42,563 of 88,656 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Derek Richner has been granted 2 US patents while listed as an inventor at Hand Tool Design. The first was granted in 1998 and the most recent in June 1999. Derek Richner ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Derek Richner in Whately, MA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5913954 Pawl for a low profile wrench Robert L. Arnold, Dana L. Delaney, James A. Van Lenten 1999-06-22
5829326 Cover plate for a ratchet wrench — 1998-11-03

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