John Houman — 2 Patents at Learonal

John Houman has been granted 2 US patents while listed as an inventor at Learonal. The first was granted in 1984 and the most recent in February 1996. John Houman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John Houman in Oyster Bay, NY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5492615	Cyclodextrin stabilization of organic metal finishing additives in aqueous metal treating baths	—	1996-02-20	$1,424,000
4490220	Electrolytic copper plating solutions	—	1984-12-25

John Houman — 2 Patents

Issued Patents All Time

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