Inventor · disambiguated record
Richard P. Welcher
Also filed as: WELCHER RICHARD P · WELCHER RICHARD PARKE
2 granted patents·22 citations·filing 1977–1977
60Inventor score
Files withAMERICAN CYANAMID CO2
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2 records- 0164US4092467AControlled polymerization of dimethyldiallylammonium halides by the use of alkali metal or ammonium bisulfites or metabisulfitesAMERICAN CYANAMID CO·Filed 1977·Granted May 30, 1978·14 cites·9 claims
- 0237US4064333AProcess for the high molecular weight polymers of diallyldimethylammonium fluoride polymers directly from diallyldimethylammonium fluoride monomerAMERICAN CYANAMID CO·Filed 1977·Granted Dec 20, 1977·8 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →