Average Co-Inventor Count = 1.57
ph-index = 5
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 832,761 patents)
2. Ortho Development Corporation (1 from 29 patents)
6 patents:
1. 11123087 - Ventricular guide for ventriculostomy
2. 6059781 - Electroconvergent cautery system
3. 5964759 - Electroconvergent cautery system
4. 4592352 - Computer-assisted tomography stereotactic system
5. 4463758 - Computed tomography stereotactic frame
6. 4309777 - Artificial intervertebral disc