Average Co-Inventor Count = 3.43
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. Exxon Research and Engineering Company (1 from 4,227 patents)
2. Dresser Industries, Inc. (1 from 1,238 patents)
3. Exxon Research & Eng. Co. (1 from 1 patent)
2 patents:
1. 5496525 - Erosion resistant, ceramic fiber lining
2. 4656146 - Abrasion resistant refractory composition