Inventor · disambiguated record

Siegfried Pietzsch

Also filed as: PIETZSCH SIEGFRIED

2 granted patents·6 citations·filing 1973–1975

49Inventor score

Technology areasC07C

Files withHOECHST AG2

Top patents by PatentIndex Score

2 records

0153US3974084AProcess for the manufacture of anhydrous alkali metal arylate solutions and separation of the arylates from alkali metal sulfiteHOECHST AG·Filed 1973·Granted Aug 10, 1976·5 cites·7 claims
0233US4110365AProcess for the manufacture of naphthalene-monosulfonic acidsHOECHST AG·Filed 1975·Granted Aug 29, 1978·1 cites·8 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →