Growing community of inventors

Stolberg, Germany

Elmar Josef Friederichs

Average Co-Inventor Count = 6.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 7

Elmar Josef Friederichs ↔ Helmut Heinrich Buschmann (1 patent)Elmar Josef Friederichs ↔ Wolfgang Werner Strassburger (1 patent)Elmar Josef Friederichs ↔ Werner Winter (1 patent)Elmar Josef Friederichs ↔ Ivars Graudums (1 patent)Elmar Josef Friederichs ↔ Peter Jansen, Deceased (1 patent)Elmar Josef FriederichsElmar Josef Friederichs (1 patent)Helmut Heinrich BuschmannHelmut Heinrich Buschmann (59 patents)Wolfgang Werner StrassburgerWolfgang Werner Strassburger (13 patents)Werner WinterWerner Winter (8 patents)Ivars GraudumsIvars Graudums (6 patents)Peter Jansen, DeceasedPeter Jansen, Deceased (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Gruenenthal Gmbh (1 from 357 patents)


1 patent:

1. 5728885 - Method of preparing the enantiomers of O-dimethyltramadol

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