Leon E. Leffel — 2 Patents | Patent Leaderboard

Leon E. Leffel has been granted 2 US patents. The first was granted in 1987 and the most recent in March 1988. Leon E. Leffel ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Leon E. Leffel in Yuma, AZ, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4730444	Air seal for preventing seed loss in crop pickup mechanism	Rick G. Leffel	1988-03-15
4691614	Nonsymmetrical compensator for handgun	Rick G. Leffel	1987-09-08

Leon E. Leffel — 2 Patents

Issued Patents All Time

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