Average Co-Inventor Count = 3.00
ph-index = 3
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. Other (3 from 832,812 patents)
3 patents:
1. 5522322 - Motorized system and method for aiding physically-impaired persons in
2. 5363771 - Motorized portable system for aiding persons in ascending or descending
3. 5269227 - Motorized portable system and method for aiding persons in ascending or