David E. Ingalls — 1 Patent | Patent Leaderboard

David E. Ingalls has been granted 1 US patent. All of these patents were granted in 1990. David E. Ingalls ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David E. Ingalls in Shepherd, MI, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4955616	Board game	—	1990-09-11

David E. Ingalls — 1 Patent

Issued Patents All Time

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