Average Co-Inventor Count = 3.20
ph-index = 4
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. Zoeller Company (4 from 12 patents)
4 patents:
1. 6495040 - Septic tank filtering system
2. 6364620 - Submersible pump containing two levels of moisture sensors
3. 6331247 - Septic tank filtering system
4. 6136190 - Septic tank filtering system