Average Co-Inventor Count = 1.92
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. Gretag Imaging Ag (6 from 48 patents)
2. Ciba-geigy Corporation (2 from 6,850 patents)
8 patents:
1. 6268901 - Photoelectric scanning device and copier equipped therewith
2. 6163362 - Photo lab with transport arrangement
3. 6059465 - Test material storage and feed device
4. 5612764 - Device for copying photographic masters
5. 5579074 - Integrated photographic processing system and procedure for operating
6. 5335045 - Photographic printing machine for copying originals on sheet-like copy
7. 4931831 - Photographic copying and enlarging apparatus
8. 4864355 - Apparatus for the production of photographic copies