Average Co-Inventor Count = 2.00
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. Baker Instruments Corp. (3 from 10 patents)
2. Union Carbide Corporation (1 from 2,921 patents)
4 patents:
1. 4337339 - Process for preparation of folic acid derivatives
2. 4326060 - Process for preparation of folic acid derivatives
3. 4314988 - Folic acid derivatives and process for preparation
4. 4298735 - Folic acid derivatives