Average Co-Inventor Count = 1.91
ph-index = 5
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 Electric Works, Ltd. (7 from 1,623 patents)
7 patents:
1. D311972 - Electric shaver
2. D304774 - Electric shaver
3. D304627 - Electric hair clipper
4. D302740 - Electric shaver
5. D301617 - Electric massager
6. D301496 - Motor-driven screw driver
7. D295682 - Hair clipper casing