Average Co-Inventor Count = 2.25
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. Rohm Co., Ltd. (3 from 5,996 patents)
3 patents:
1. 11076472 - Signaling lamp monitor
2. D882162 - Sensor for a signal lamp
3. D882163 - Sensor for a signal lamp