Average Co-Inventor Count = 3.00
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. The Standard Oil Company (5 from 1,192 patents)
5 patents:
1. 4894173 - Divalent ion tolerant aromatic sulfonates
2. 4836283 - Divalent ion tolerant aromatic sulfonates
3. 4757044 - Lanthanide metal salts of heteropolyanions as catalysts for alcohol
4. 4687875 - Metal coordination complexes of heteropolyacids as catalysts for alcohol
5. 4612301 - Metal coordination complexes of heteropolyacids as catalysts for alcohol