Average Co-Inventor Count = 2.00
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. The Standard Oil Company (1 from 1,192 patents)
2. Standard Oil (1 from 2 patents)
2 patents:
1. 4789538 - Method of preparing ammonia and ammonia synthesis catalysts
2. 4724135 - Preparation of high surface area mixed metal oxides