Average Co-Inventor Count = 2.40
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. Tenneco Chemicals, Inc. (2 from 124 patents)
2 patents:
1. 4139501 - Production of polyurethane foam of reduced tendency to form embers when
2. 4082704 - Polyurethane foam of increased rigidity