Average Co-Inventor Count = 3.31
ph-index = 4
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. Hewlett-packard Company (3 from 9,638 patents)
2. Tandy Corporation (2 from 130 patents)
5 patents:
1. D458123 - Packaging carton
2. D423926 - Packaging carton
3. D396806 - Front and side panels of a box
4. D331237 - Audio cassette
5. D331236 - Audio cassette