Average Co-Inventor Count = 4.50
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. Basf Aktiengesellschaft (3 from 10,754 patents)
3 patents:
1. 4709290 - Tape cassette, in particular a magnetic tape cassette, and a support
2. 4632334 - Tape cassette, in particular a magnetic tape cassette, and a reel
3. 4624423 - Tape cassette with liner