Average Co-Inventor Count = 3.24
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. Matsushita Graphic Communication Systems, Inc. (4 from 191 patents)
4 patents:
1. D304579 - Facsimile transceiver
2. D288093 - Facsimile transceiver
3. D278817 - Facsimile Transceiver
4. D262967 - Facsimile transceiver