Average Co-Inventor Count = 1.11
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. Other (5 from 832,891 patents)
5 patents:
1. 4618068 - Method and apparatus for shipping and storing cargo
2. 4548298 - Rotor and screw elevator equipped with a fail-safe control system
3. 4438830 - Stairway with fail safe power lift for lading, the infirm, wheelchair
4. 4274296 - Self-centering self-aligning anti-friction rotor and screw
5. 4223938 - Mobile showroom with living quarters