Average Co-Inventor Count = 4.00
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. Donlar Corporation (5 from 47 patents)
5 patents:
1. 5391764 - Polyaspartic acid manufacture
2. 5373086 - Polyaspartic acid having more than 50% .beta. form and less that 50%
3. 5315010 - Polyaspartic acid manufacture
4. 5221733 - Manufacture of polyaspartic acids
5. 5152902 - Polyaspartic acid as a calcium carbonate and a calcium phosphate