B41B 21/18
Defining a single optical path
Official title: defining a single optical path
B41B21/18 (Defining a single optical path) appears on 7 US grants and 0 published applications in this corpus.
Search patents in B41B- Granted patents
- 7
- Published applications
- 0
- Assignees
- 7
- Inventors
- 11
- Latest grant
- 8 Jul 1997
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Apparatus and method for exposing data characters onto a strip region of moving photosensitive media8 Jul 1997US 5,646,713 AEastman Kodak Company
- Character imaging system17 Nov 1987US 4,707,711 ALumonics Inc.
- Device for exposing discrete portions of a photosensitive surface by means of a light beam31 Mar 1987US 4,653,882 AEIE Electronic Industrial Equipment S.A.
- Photohead with flashing beam14 Dec 1982US 4,363,539 AGerber Scientific, Inc.
- Optical scanning apparatus3 Jan 1978US 4,067,021 AThe Monotype Corporation Limited
No published applications in this class yet.
Most cited
By later US patents
- Optical scanning apparatus17US 4,067,021 AThe Monotype Corporation Limited · 1978
- Apparatus and method for exposing data characters onto a strip region of moving photosensitive media15US 5,646,713 AEastman Kodak Company · 1997
- Photocomposition escapement drive system5US 4,008,480 AAddressograph Multigraph Corporation · 1977
- Character imaging system5US 4,707,711 ALumonics Inc. · 1987
- Inexpensive and reliable custom programmable phototypesetter3US 4,067,022 AItek Corporation · 1978