Average Co-Inventor Count = 1.85
ph-index = 9
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. Invacare Corporation (12 from 320 patents)
2. Viewray Technologies, Inc. (1 from 47 patents)
13 patents:
1. 11850906 - Stability control system
2. 11535078 - Stability control system
3. 11097589 - Stability control system
4. 10532626 - Stability control system
5. 9966160 - Radiation beam collimating systems and methods
6. 9827823 - Stability control system
7. 9346335 - Stability control system
8. 8910975 - Wheelchair with suspension
9. 8573341 - Wheelchair suspension
10. 7374002 - Wheelchair suspension
11. 7066290 - Wheelchair suspension having pivotal motor mount
12. 5154251 - Power driven vehicle
13. 4887830 - Wheelchair with combined wheel lock and hill holder