Average Co-Inventor Count = 4.09
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. Kabushiki Kaisha Topcon (3 from 1,033 patents)
3 patents:
1. 8319952 - Geographic data collecting system
2. 7933001 - Geographic data collecting system
3. 5440112 - Surveying instrument having mode judgement means