Average Co-Inventor Count = 1.33
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. Ohio Medical Instrument Company, Inc. (3 from 30 patents)
2. Other (1 from 832,718 patents)
4 patents:
1. 5529358 - Bifurcated surgical retractor
2. 4892545 - Vertebral lock
3. 4457300 - Surgical retractor
4. 4256096 - Mattress assembly for treatment of patients