Average Co-Inventor Count = 2.83
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. (6 from 1,623 patents)
6 patents:
1. D545759 - Battery
2. D533422 - Electric drill driver
3. D533423 - Electric impact driver
4. D530581 - Electric screw driver body
5. D343923 - Electric shaver
6. D304865 - Combined electric shaver and blade cover therefor