Average Co-Inventor Count = 2.31
ph-index = 5
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. Merck + Co., Inc. (5 from 4,770 patents)
5 patents:
1. 4942037 - Transdermal delivery systems
2. 4880633 - Transdermal drug delivery system
3. 4797284 - Transdermal drug delivery system
4. 4756710 - pH-Mediated drug delivery system
5. 4752478 - Transdermal system for timolol