Average Co-Inventor Count = 2.14
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. U.S. Philips Corporation (5 from 14,087 patents)
5 patents:
1. 4639801 - Loading mechanism for a magnetic tape cassette apparatus
2. 4578724 - Tape cassette holder with releasable reel hold-down
3. 4323936 - Recording and/or reproducing apparatus
4. 4322761 - Tape guide in a helical scan cassette recorder
5. 4235395 - Magnetic tape cassette with pivoting cover