Average Co-Inventor Count = 3.52
ph-index = 11
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. Penn-plax Plastics, Inc. (27 from 27 patents)
2. Penn-plax, Inc. (3 from 12 patents)
30 patents:
1. 5186122 - Small animal living environment system
2. 5092269 - Small animal living environment system
3. 5018480 - Simulated tree branch for small animal enclosures
4. 4820556 - Decorative shelf system for aquarium or terrarium
5. 4804012 - Aquarium air valve system and hanger unit
6. 4713173 - Three element aquarium filter cartridge
7. 4708089 - Animal habitat system for use in an animal enclosure
8. 4693817 - Gravel trap and collar assembly for an undergravel aquarium filter system
9. D291825 - Aquarium filter cartridge
10. 4678568 - Multi-use aquarium maintenance system
11. D290768 - Shelf unit for aquariums
12. D290127 - Aquarium air pump
13. D287170 - Automatic aquarium feeder
14. 4620924 - Aquarium corner filter
15. 4571766 - Device for cleaning the interior surface of an aquarium