Average Co-Inventor Count = 3.00
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 Electric Works, Ltd. (4 from 1,623 patents)
4 patents:
1. 4589208 - Portable electric circular saw
2. 4555849 - Battery powered portable saw
3. 4509259 - Electric shaver
4. 4426776 - Electric shaver