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. Ciba-geigy Corporation (3 from 6,850 patents)
3 patents:
1. 4822833 - Stabilized rigid polyvinyl chloride compositions
2. 4619957 - Benzoate-stabilized rigid polyvinyl chloride compositions
3. 4555541 - Benzoate-stabilized rigid polyvinyl chloride compositions