Average Co-Inventor Count = 1.45
ph-index = 4
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. Other (9 from 832,718 patents)
2. Prontor-werk, Alfred Gauthier Gmbh (6 from 16 patents)
3. Carl-zeiss-stiftung, Heidenheim/brenz (1 from 57 patents)
16 patents:
1. 4964221 - Counterbalanced coordinate-measuring instrument
2. 4514066 - Mechanism for indicating and setting the parameters of exposure aperture
3. 4470679 - Central shutter for cameras, especially professional cameras
4. 4372662 - Diaphragm setting device for photographic camera
5. 4355876 - Control device having an internal electric or voltage source
6. 4354752 - Photographic camera
7. 4354753 - Reflex camera having a focal plane shutter and an interchangeable
8. 4349256 - Photographic camera such as a reflex camera
9. 4339192 - Cable release attachable to a camera shutter
10. 4327846 - Apparatus for supplying cooling and/or polishing liquids, more
11. 4327977 - Frictionally controlled photographic camera apparatus such as a reflex
12. 4277155 - Control device for photographic cameras
13. 4216626 - Machine for grinding and polishing workpieces
14. 4158779 - X-ray shield
15. 4057812 - Camera shutter having an electronic timing device