Inventor · disambiguated record
Erfried Parr
Also filed as: PARR ERFRIED
4 granted patents·68 citations·filing 1976–1977
77Inventor score
Top patents by PatentIndex Score
4 records- 0177US4073867AProcess for the production of crystalline zeolitic molecular sieves of type ADEGUSSA·Filed 1976·Granted Feb 14, 1978·34 cites·10 claims
- 0260US4222995AProcess for the production of aluminum silicatesDEGUSSA·Filed 1976·Granted Sep 16, 1980·18 cites·3 claims
- 0360US4040972AIon-exchanging aluminum silicate with hydrophilic surfacesDEGUSSA·Filed 1976·Granted Aug 9, 1977·11 cites·20 claims
- 0439US4088593AIon-exchanging aluminum silicate with hydrophilic surfacesHENKEL KGAA·Filed 1977·Granted May 9, 1978·5 cites·10 claims
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