Average Co-Inventor Count = 3.49
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)
2. Topcon Corporation (2 from 525 patents)
5 patents:
1. 12181282 - Information projecting system and information projecting method
2. 11048964 - Survey data processing device, survey data processing method, and survey data processing program
3. 8319952 - Geographic data collecting system
4. 7933001 - Geographic data collecting system
5. 7726033 - Multi-point measuring method and surveying device