Average Co-Inventor Count = 2.77
ph-index = 3
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. (3 from 1,623 patents)
3 patents:
1. 4365376 - Mouth cleaning device
2. 4348810 - Blade part assembling structure for electric shaver
3. 4031617 - Electric shaver with long hair trimmer