Growing community of inventors

Erftstadt-Lechenich, Germany

Hugo Friehe

Average Co-Inventor Count = 4.29

ph-index = 2

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 = 12

Hugo FrieheHans-Heiner Lautenschlager (2 patents)Hugo FrieheGerd Hilboll (2 patents)Hugo FrieheJosef P Lohr (2 patents)Hugo FrieheEugen Etschenberg (1 patent)Hugo FrieheJurgen Biedermann (1 patent)Hugo FrieheJohannes Winkelmann (1 patent)Hugo FrieheWolfgang Scheef (1 patent)Hugo FrieheHugo Friehe (3 patents)Hans-Heiner LautenschlagerHans-Heiner Lautenschlager (16 patents)Gerd HilbollGerd Hilboll (10 patents)Josef P LohrJosef P Lohr (3 patents)Eugen EtschenbergEugen Etschenberg (19 patents)Jurgen BiedermannJurgen Biedermann (9 patents)Johannes WinkelmannJohannes Winkelmann (7 patents)Wolfgang ScheefWolfgang Scheef (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. A. Nattermann & Cie Gmbh (2 from 94 patents)

2. Nattermann & Cie Gmbh (1 from 5 patents)


3 patents:

1. 4507298 - 6-{4-(.omega.-(1-imidazolyl)-alkyl-phenyl}-3-oxo-2,3,4,5-tetrahydro-

2. 4505854 - Optically active dipeptides and the use thereof as tissue dissolving and

3. 4504479 - 6-{5-[.omega.-(1-Imidazolyl)-alkyl]

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12/7/2025
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