Average Co-Inventor Count = 1.43
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. Drain-all, Inc. (4 from 6 patents)
2. Other (1 from 832,880 patents)
5 patents:
1. 5014735 - Automatic drain valve
2. 5004004 - Automatic drain valve
3. 4779640 - Automatic drain valve
4. 4574829 - Automatic drain valve
5. 4562855 - Automatic drain valve