Average Co-Inventor Count = 6.00
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. Dresser Industries, Inc. (2 from 1,238 patents)
2. Cassella Aktiengesellschaft (2 from 260 patents)
2 patents:
1. 4551513 - Water soluble copolymers
2. 4500437 - Water soluble copolymers for use in fracture-acidizing of wells