Average Co-Inventor Count = 2.40
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. Draw-Tite, Inc. (1 from 30 patents)
2. The Fisher Group Inc. (1 from 2 patents)
2 patents:
1. 6095545 - Positive lock gooseneck hitch
2. 4852902 - Towing hitch cover