Average Co-Inventor Count = 1.50
ph-index = 2
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 (1 from 832,761 patents)
2. Vysshee Voennoe Tekhnicheskoe Uchilische Imeni N.e. Baumana (1 from 1 patent)
2 patents:
1. 5392079 - Keratometer
2. 4468122 - Interferometer for checking the shape of convex surfaces of optical