H04Q 2213/32
Logic elements
H04Q2213/32 (Logic elements) appears on 4 US grants and 0 published applications in this corpus.
Search patents in H04Q- Granted patents
- 4
- Published applications
- 0
- Assignees
- 2
- Inventors
- 7
- Latest grant
- 10 Jun 1997
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- ISDN interface unit10 Jun 1997US 5,638,373 AFujitsu Limited
- ISDN interface unit with separate ring generator8 Oct 1996US 5,563,943 AFujitsu Limited
- ISDN interface unit12 Sep 1995US 5,450,412 AFujitsu Limited
- Terminal equipment identifier control circuit16 Oct 1990US 4,963,862 AMitsubishi Denki Kabushiki Kaisha
No published applications in this class yet.
Most cited
By later US patents
- ISDN interface unit22US 5,450,412 AFujitsu Limited · 1995
- ISDN interface unit with separate ring generator13US 5,563,943 AFujitsu Limited · 1996
- ISDN interface unit11US 5,638,373 AFujitsu Limited · 1997
- Terminal equipment identifier control circuit4US 4,963,862 AMitsubishi Denki Kabushiki Kaisha · 1990