Average Co-Inventor Count = 2.57
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. Thetford Corporation (3 from 123 patents)
3 patents:
1. D255828 - Toilet
2. 4192027 - Toilet
3. 4185337 - Portable toilet with improved flush apparatus