Average Co-Inventor Count = 2.57
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. J. J. Keller & Associates, Inc. (3 from 27 patents)
3 patents:
1. 11276331 - Flexible placard holder
2. 10410547 - Placard fastener
3. 10204533 - Placard fastener