H03K 19/0863
Emitter function logic [efl]
Official title: {Emitter function logic [EFL]; Base coupled logic [BCL]}
H03K19/0863 (Emitter function logic [efl]) appears on 5 US grants and 0 published applications in this corpus.
Search patents in H03K- Granted patents
- 5
- Published applications
- 0
- Assignees
- 4
- Inventors
- 6
- Latest grant
- 24 Sep 1991
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Area-efficient low-power bipolar current-mode logic24 Sep 1991US 5,051,621 ANational Semiconductor Corporation
- Emitter function logic with concurrent, complementary outputs1 Mar 1988US 4,728,818 ATandem Computers Incorporated
- EFL Logic arrays29 Mar 1983US 4,378,508 ABell Telephone Laboratories, Incorporated
- Current mode logic compatible emitter function type logic family20 Mar 1979US 4,145,623 ABurroughs Corporation
- Noninverting current-mode logic gate8 Feb 1977US 4,007,384 ABell Telephone Laboratories, Incorporated
No published applications in this class yet.
Most cited
By later US patents
- Current mode logic compatible emitter function type logic family15US 4,145,623 ABurroughs Corporation · 1979
- Noninverting current-mode logic gate3US 4,007,384 ABell Telephone Laboratories, Incorporated · 1977
- Area-efficient low-power bipolar current-mode logic3US 5,051,621 ANational Semiconductor Corporation · 1991
- EFL Logic arrays1US 4,378,508 ABell Telephone Laboratories, Incorporated · 1983
- Emitter function logic with concurrent, complementary outputs1US 4,728,818 ATandem Computers Incorporated · 1988