Average Co-Inventor Count = 3.43
ph-index = 1
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. Johnson Matthey Public Limited Company (3 from 835 patents)
2. Johnson Matthey Inc. (1 from 268 patents)
4 patents:
1. 10792647 - Base metal catalysts for the oxidation of carbon monoxide and volatile organic compounds
2. 10525412 - Oxidation catalyst for treating a natural gas emission
3. 9765673 - Soot monitoring method and alert system
4. 8758460 - Catalyst composition