LeRoy E. Johnson — 2 Patents at The Upjohn

LeRoy E. Johnson has been granted 2 US patents while listed as an inventor at The Upjohn. The first was granted in 1981 and the most recent in June 1982. LeRoy E. Johnson ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list LeRoy E. Johnson in Kalamazoo, MI, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4335108	Paulomycin A and B and preparation thereof	Alexander D. Argoudelis, Vincent P. Marshall	1982-06-15	$2,987,000
4306021	Composition of matter and process	Lester A. Dolak	1981-12-15	$1,442,000

LeRoy E. Johnson — 2 Patents

Issued Patents All Time

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