Average Co-Inventor Count = 5.81
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. Nissan Motor Company Limited (6 from 13,408 patents)
6 patents:
1. 9180813 - Vehicle notification sound emitting apparatus
2. 8773253 - Vehicle notification sound emitting apparatus
3. 8730027 - Vehicle notification sound emitting apparatus
4. 8669858 - Vehicle notification sound emitting apparatus
5. 8665081 - Vehicle notification sound emitting apparatus
6. 8599006 - Vehicle notification sound emitting apparatus