Average Co-Inventor Count = 1.71
ph-index = 3
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. Asia Optical Co., Ltd. (5 from 486 patents)
2. Sintai Optical (shenzhen) Co., Ltd. (2 from 219 patents)
5 patents:
1. 10788288 - Sight and compensating mechanism thereof
2. 10337831 - Sight and compensating mechanism thereof
3. 7522871 - Auto document feeder having a switching gate movable between three positions
4. 7516958 - Auto document feeder
5. 6236504 - Method and device for adjusting eye range by means of displacements of prisms and ocular lenses