Average Co-Inventor Count = 5.00
ph-index = 1
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. Sumitomo Electric Industries, Limited (1 from 10,273 patents)
2. Matsushita Electric Works, Ltd. (1 from 1,623 patents)
1 patent:
1. 5416467 - Security system utilizing loosely contained optical fiber