Average Co-Inventor Count = 14.01
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. Other (1 from 832,891 patents)
2. Sumitomo Electric Industries, Limited (1 from 10,264 patents)
3. National Aerospace Laboratories of Science & Technology Agency (1 from 3 patents)
1 patent:
1. 4582678 - Method of producing rocket combustors