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. D397259 - Electric massage chair
2. D365217 - Electric massaging chair
3. 4899442 - Hand-held clipper for removing entangled fiber strands from the surface