Average Co-Inventor Count = 1.23
ph-index = 15
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. (18 from 218 patents)
2. Contech Technologies, Inc. (1 from 2 patents)
19 patents:
1. 8511024 - Veneers for walls, retaining walls and the like
2. 8464491 - Column block system
3. 8434971 - Retaining wall block with face connection
4. 8132988 - Retaining wall block
5. 7780141 - Mold box for making first and second wall blocks
6. 7641178 - Column block system
7. D501935 - Wall block
8. 6821058 - Retaining wall block system and connector
9. D488569 - Landscaping block
10. D479342 - Landscaping block
11. D430308 - Retaining wall block
12. 5913790 - Plantable retaining wall block
13. 5865006 - Retaining wall block and wall construction
14. D397808 - Landscaping block
15. 5771631 - Landscaping block