Average Co-Inventor Count = 3.20
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. Diamond Shamrock Corporation (2 from 329 patents)
2. Eltech Systems Corporation (1 from 166 patents)
3. Diamond Shamrock Chemicals Company (1 from 57 patents)
4 patents:
1. 4701250 - Dimensionally stable asbestos diaphragm coated foraminous cathode
2. 4489025 - Preparation of dimensionally stable asbestos diaphragms
3. 4410411 - Dimensionally stable asbestos diaphragms
4. 3943044 - Method for treating sewage water