Average Co-Inventor Count = 3.00
ph-index = 2
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. Nohmi Bosai Ltd. (2 from 96 patents)
2 patents:
1. 6033080 - Emergency light operable on the lever principle
2. D410863 - Emergency light