Average Co-Inventor Count = 3.00
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. Tetra Holding (us), Inc. (3 from 27 patents)
2. Tetra Holding, Inc. (0 patent)
3 patents:
1. 7658842 - Filter cartridge assembly with water collection
2. 7638044 - Aquarium filter housing with rounded bottom
3. 7553411 - Filter cartridge