Average Co-Inventor Count = 3.75
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. Penn-Plax Plastics, Inc. (5 from 27 patents)
5 patents:
1. D290768 - Shelf unit for aquariums
2. D290127 - Aquarium air pump
3. 4571766 - Device for cleaning the interior surface of an aquarium
4. D279317 - Aquarium ornament
5. D278465 - Aquarium ornament