Average Co-Inventor Count = 4.00
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. Tokyo Gas Company Limited (1 from 193 patents)
2. Gastec Corporation (1 from 6 patents)
1 patent:
1. 6048733 - DMS detecting agent, method for preparing the same and DMS detector tube