Average Co-Inventor Count = 2.67
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. Alza Corporation (2 from 1,062 patents)
2 patents:
1. 4753802 - Verapamil dosage form
2. 4662880 - Pseudoephedrine, brompheniramine therapy