Inventor
Helmut Zangenfeind
Inventor
Puchheim, DE
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Dprimary
G03DApparatus for processing exposed photographic materials74%
Y10TTechnical subjects covered by former us classification9%
B31FMechanical working or deformation of paper, cardboard or material worked in a manner analogous to paper4%
B65CLabelling or tagging machines, apparatus, or processes4%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables4%
G03CPhotosensitive materials for photographic purposes4%
PatentTitleYear
6,000,861'Method of and device for testing a photographic film'19995,842,077'Device for the automatic removal of a photographic film from a cartridge'19985,781,819'Device for feeding film cartridges'19985,708,905'Device for automatic removal of a photographic film from a cartridge'19985,279,696'Apparatus for reading and processing encoded information of uniting bands for webs of photographic material'19945,154,410'Apparatus for straightening and stacking envelopes for photosensitive materials'19924,894,675'Apparatus for splicing together undeveloped customer films in a darkroom'19904,888,613'Method of and apparatus for processing exposed photographic films'19894,799,076'Apparatus for affording access to exposed but undeveloped films in a dark chamber'19894,732,278'Apparatus for transporting cartridge for exposed roll film'19884,643,371'Apparatus for unwinding exposed roll films from reels'19874,621,970'Apparatus for removing reels with exposed roll films from cartridges'19864,360,138'Apparatus for removing exposed films and backing strips from cassettes'19824,282,997'Apparatus for removing exposed films and backing strips from cassettes'19814,094,726'Apparatus for processing exposed photographic films and cassettes for such films'19784,087,033'Apparatus for opening film cassettes'19784,073,588'Apparatus for applying indicia to films and envelopes in photographic processing laboratories'19784,046,614'Splicing apparatus for photographic films or the like'19774,004,724'Apparatus for removing exposed films and backing strips from containers'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1999Patents assigned to AGFA GEVAERT AG (18)· patent assignee history
1977–1999Based in Puchheim, DE· patent location history
1978Patents assigned to AAGFA GEVAERT A G (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AGFA GEVAERT AG | 18 | 1977–1999 |
| AAGFA GEVAERT A G | 1 | 1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Puchheim, DE | 19 | 1977–1999 |