Average Co-Inventor Count = 3.22
ph-index = 6
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. (8 from 1,623 patents)
8 patents:
1. 4942884 - Portable battery powered electromagnetic therapy application
2. 4926881 - Portable battery powered electromagnetic therapy applicator
3. 4721438 - Motor-driven fluid pump
4. 4497323 - Exhaust valve having a constant bleed rate
5. 4417587 - Blood pressure measuring apparatus
6. 4372319 - Low frequency therapeutic instrument
7. 4326536 - Sphygmomanometer
8. 4216956 - Running machine