Average Co-Inventor Count = 5.71
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. First Chemical Corporation (4 from 23 patents)
4 patents:
1. 5939581 - Processes for preparing hydrocinnamic acid
2. 5916984 - Process for preparing thioxanthone and derivatives thereof
3. 5907046 - Processes for preparing thioxanthone and derivatives thereof
4. 5712401 - Processes for preparing thioxanthone and derivatives thereof