Average Co-Inventor Count = 2.40
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. Crutcher Resources Corporation (1 from 15 patents)
2. Crc-evans Rehabilitation Systems, Inc. (1 from 10 patents)
3. Crc Pipeline International, Inc. (1 from 1 patent)
3 patents:
1. 5458683 - Device for surface cleaning, surface preparation and coating applications
2. 4610403 - Pipe tape tensioner
3. 4205407 - Quick-change brush head