Average Co-Inventor Count = 1.00
ph-index = 3
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. Yamaguchi Electric Ind. Co. Ltd. (3 from 6 patents)
3 patents:
1. D514973 - Reversing alarm
2. D513709 - Reversing alarm
3. D513599 - Reversing alarm