Average Co-Inventor Count = 2.00
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. Keystone Retaining Wall Systems, Inc. (5 from 218 patents)
5 patents:
1. 11598094 - Retaining wall block and retaining wall block system
2. 10760269 - Retaining wall block and retaining wall block system
3. D846760 - Wall block
4. 9028175 - Retaining wall block system
5. 8622659 - Retaining wall block system