Average Co-Inventor Count = 3.36
ph-index = 7
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. Portec Rail Products, Inc. (11 from 29 patents)
2. Koppers Delaware, Inc. (6 from 17 patents)
3. L.b. Foster Rail Technologies, Corp. (4 from 18 patents)
4. Other (1 from 832,718 patents)
5. Protec Rail Products, Inc. (1 from 1 patent)
23 patents:
1. 11041274 - Center supported bond joint
2. 10358153 - Top of rail foam bar
3. 9440665 - Top of rail foam bar
4. 8955645 - Top of rail foam bar
5. 8783416 - Wiping bar quick clamp
6. 8777121 - Lap joint
7. 8302878 - Method and arrangement to insulate rail ends
8. 8123144 - Rail joint bars and rail joint assemblies
9. 8113441 - Lap joint
10. 8074772 - Top of rail applicator
11. 8042747 - Notched tie plate insulator
12. 7975933 - Method and arrangement to insulate rail ends
13. 7798365 - Bulk transfer dispensing device and method
14. 7490781 - Rail joint bars and rail joint assemblies
15. D576023 - Center supported bond joint