Growing community of inventors

Marl, Germany

Helmut Birkner

Average Co-Inventor Count = 12.00

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 = 16

Helmut Birkner ↔ Konrad Rombusch (1 patent)Helmut Birkner ↔ Armin Gude (1 patent)Helmut Birkner ↔ Gerhard Menzel (1 patent)Helmut Birkner ↔ Heidelore Freyberger, Heir (1 patent)Helmut Birkner ↔ Sigrid Rossnagel, Heir (1 patent)Helmut Birkner ↔ Hans-Ernst Sprenger (1 patent)Helmut Birkner ↔ Dagmar Hegenberg, Heir (1 patent)Helmut Birkner ↔ Felicitas Zottl, Heir (1 patent)Helmut Birkner ↔ Johanna M Hegenberg, Heir (1 patent)Helmut Birkner ↔ Peter Hegenberg, Deceased (1 patent)Helmut Birkner ↔ Joachim Hegenberg, Heir (1 patent)Helmut BirknerHelmut Birkner (1 patent)Konrad RombuschKonrad Rombusch (9 patents)Armin GudeArmin Gude (4 patents)Gerhard MenzelGerhard Menzel (2 patents)Heidelore Freyberger, HeirHeidelore Freyberger, Heir (1 patent)Sigrid Rossnagel, HeirSigrid Rossnagel, Heir (1 patent)Hans-Ernst SprengerHans-Ernst Sprenger (1 patent)Dagmar Hegenberg, HeirDagmar Hegenberg, Heir (1 patent)Felicitas Zottl, HeirFelicitas Zottl, Heir (1 patent)Johanna M Hegenberg, HeirJohanna M Hegenberg, Heir (1 patent)Peter Hegenberg, DeceasedPeter Hegenberg, Deceased (1 patent)Joachim Hegenberg, HeirJoachim Hegenberg, Heir (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Chemische Werke Huls Aktiengesellschaft (1 from 283 patents)


1 patent:

1. 4170588 - Synthetic resin stabilizers based on quadratic acid amides

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