Average Co-Inventor Count = 1.14
ph-index = 4
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. Hogan Mfg., Inc. (3 from 14 patents)
2. Lift-u, Division of Hogan Mfg., Inc. (1 from 69 patents)
4 patents:
1. 5632593 - Vehicle lift with tapered contact sensor
2. 5165839 - Wheelchair lift for railway cars
3. 5158419 - Wheelchair lift for transit vehicles having elevated passenger
4. 5110252 - Wheelchair lift for transit vehicles having elevated passenger