Average Co-Inventor Count = 4.00
ph-index = 2
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. (1 from 27 patents)
2. Penn-plax, Inc. (1 from 12 patents)
2 patents:
1. 5664525 - Small animal visual burrowing module
2. 4820556 - Decorative shelf system for aquarium or terrarium