Growing community of inventors

Griesheim, Germany

Norbert Klesel

Average Co-Inventor Count = 4.20

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 = 2

Norbert Klesel ↔ Walter Durckheimer (1 patent)Norbert Klesel ↔ Gerhard Seibert (1 patent)Norbert Klesel ↔ Elmar Schrinner (1 patent)Norbert Klesel ↔ Dieter Isert (1 patent)Norbert Klesel ↔ Gerd Fischer (1 patent)Norbert Klesel ↔ Michael Limbert (1 patent)Norbert Klesel ↔ Friedhelm Adam (1 patent)Norbert Klesel ↔ Burkhard Mencke (1 patent)Norbert Klesel ↔ Gerhard Seibert (1 patent)Norbert Klesel ↔ Gerd Fischer (1 patent)Norbert KleselNorbert Klesel (2 patents)Walter DurckheimerWalter Durckheimer (33 patents)Gerhard SeibertGerhard Seibert (29 patents)Elmar SchrinnerElmar Schrinner (18 patents)Dieter IsertDieter Isert (12 patents)Gerd FischerGerd Fischer (11 patents)Michael LimbertMichael Limbert (9 patents)Friedhelm AdamFriedhelm Adam (4 patents)Burkhard MenckeBurkhard Mencke (4 patents)Gerhard SeibertGerhard Seibert (1 patent)Gerd FischerGerd Fischer (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hoechst Aktiengesellschaft (2 from 6,662 patents)

2. Gerd Fischer (0 patent)

3. Norbert Klesel (0 patent)

4. Dieter Isert (0 patent)

5. Walter Durckheimer (0 patent)

6. Gerhard Seibert (0 patent)

7. Burkhard Mencke (0 patent)

8. Friedhelm Adam (0 patent)


2 patents:

1. 5350753 - Pharmaceutical combination preparations containing cephalosporin and

2. 5306717 - Cephalosporin derivatives

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as of
1/17/2026
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