David Feitler — 7 Patents at Nepera

David Feitler has been granted 7 US patents while listed as an inventor at Nepera. The first was granted in 1982 and the most recent in December 1999. David Feitler ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list David Feitler in Whitehall, PA, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6001763	Method for re-manufacturing a cobalt/manganese/bromine catalyst from residue containing used catalyst	—	1999-12-14
5759229	Method for recovering cobalt/manganese/bromine values from residue containing used catalyst	—	1998-06-02
5013843	High yield of pyridine and/or alkylpyridine(s) in condensation reaction of ternary aldehydes and/or ketones with ammonia	Henry Wetstein	1991-05-07
4883881	Preparation of UV grade synthetic pyridine	Henry Wetstein	1989-11-28
4675410	Process for the production of pyridine or alkyl substituted pyridines	Wolfgang Schimming, Henry Wetstein	1987-06-23
4612387	Production of carboxylic acids and esters	—	1986-09-16	$12,294,000
4333885	Method for producing carboxylic acid anhydride	—	1982-06-08	$2,276,000

David Feitler — 7 Patents

Issued Patents All Time

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