Average Co-Inventor Count = 2.80
ph-index = 7
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. Lift-u, Division of Hogan Mfg., Inc. (7 from 69 patents)
7 patents:
1. 6602041 - Vehicle flip-out ramp
2. 6409458 - Low floor vehicle ramp assembly
3. 6238168 - Ramp assembly with locking mechanisms
4. 6210098 - Low floor vehicle ramp assembly
5. 6203265 - Ramp assembly with lifting levers
6. 6186733 - Low floor vehicle ramp assembly
7. 6010298 - Low floor vehicle ramp assembly