Average Co-Inventor Count = 2.73
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 Industrial Co., Ltd. (5 from 27,375 patents)
5 patents:
1. D471966 - Toilet seat
2. D468577 - Microwave oven
3. D446306 - Medical information communication apparatus
4. D426637 - Sphygmomanometer
5. D398095 - Electric vacuum cleaner