Average Co-Inventor Count = 1.50
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. The Hartz Mountain Corporation (2 from 109 patents)
2 patents:
1. 5265557 - Pet cage perch assemblage
2. 3994262 - Play apparatus for animal pets