Average Co-Inventor Count = 5.46
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.
Company Filing History:
1. Other (1 from 832,812 patents)
2. Gm Global Technolgoy Operations, Inc. (1 from 30,982 patents)
3. Technische Universitat Bergakademie Freiberg (1 patent)
4. Mertens, Florian (0 patent)
5. Reich, Matthias (0 patent)
6. Kirsten, Ulf (0 patent)
7. Roentzsch, Silke (0 patent)
8. Schwarz, Marcus (0 patent)
9. Röntzsch, Silke (0 patent)
2 patents:
1. 9328559 - Direct drill bit drive for tools on the basis of a heat engine
2. 7462344 - Methods for reversibly storing hydrogen