Average Co-Inventor Count = 2.40
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. Bertin & Cie (3 from 107 patents)
3 patents:
1. 5155344 - Method and device for reading a bar code of variable orientation on a
2. 4977605 - Binary quantification of an image having multiple levels of greys
3. 4922093 - Method and a device for determining the number of people present in a