Growing community of inventors

Cambridge, United Kingdom

Petra Ziegler

Average Co-Inventor Count = 4.21

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 = 11

Petra ZieglerHermann Sahm (4 patents)Petra ZieglerLothar Eggeling (4 patents)Petra ZieglerGeorg Thierbach (3 patents)Petra ZieglerWalter Pfefferle (1 patent)Petra ZieglerPetra Peters-Wendisch (1 patent)Petra ZieglerPetra Ziegler (4 patents)Hermann SahmHermann Sahm (43 patents)Lothar EggelingLothar Eggeling (34 patents)Georg ThierbachGeorg Thierbach (54 patents)Walter PfefferleWalter Pfefferle (85 patents)Petra Peters-WendischPetra Peters-Wendisch (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,680 patents)

2. Degussa Aktiengesellschaft (1 from 1,678 patents)

3. Forschungszentrum Julich Gmbh (1 from 302 patents)

4. Degussa - Huls Ag (1 from 145 patents)


4 patents:

1. 7083952 - Nucleotide sequences coding for proteins involved in the biosynthesis of L-serine, an improved method for the microbial production of L-serine and a genetically modified microorganism suitable therefor

2. 6913909 - Nucleotide sequences coding for the thrE gene and process for the enzymatic production of L-threonine using coryneform bacteria

3. 6596516 - Process for the fermentative preparation of L-amino acids using coryneform bacteria

4. 6410705 - Nucleotide sequences coding for the thrE gene and process for the enzymatic production of L-threonine using coryneform bacteria

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as of
12/7/2025
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