Average Co-Inventor Count = 3.43
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. Leybold Aktiengesellschaft (2 from 393 patents)
2 patents:
1. 5542257 - Cryogenic pump with an essentially cup-shaped housing
2. 5465584 - Cryopump