Average Co-Inventor Count = 2.40
ph-index = 3
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. Inventio Ag (4 from 1,345 patents)
2. Ruedi Stocker (0 patent)
3. Christoph Liebetrau (0 patent)
4 patents:
1. 7775325 - Drive for an elevator installation and method of converting a drive in an elevator installation
2. 7665580 - Equipment for suspension of a car or counter weight in an elevator installation and methods for mounting and for maintenance of suspension means
3. 7624847 - Drive for an elevator installation
4. 7398863 - Safety device for elevators