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David E. Grass — 1 Patent

BFBridgestone Firestone: 1 patents #131 of 276Top 50%
Carmel, IN: #943 of 1,387 inventorsTop 70%
Indiana: #19,553 of 33,936 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
David E. Grass has been granted 1 US patent while listed as an inventor at Bridgestone Firestone. All of these patents were granted in 1999. David E. Grass ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David E. Grass in Carmel, IN, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5941510 Metal/elastomeric bumper for air springs Mark D. Hilburger, Daniel J. Leonard, Mohamad Taghizadeh, Michael K. Whitaker 1999-08-24

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