H04Q 2213/215
Code checking
H04Q2213/215 (Code checking) appears on 3 US grants and 0 published applications in this corpus.
Search patents in H04Q- Granted patents
- 3
- Published applications
- 0
- Assignees
- 3
- Inventors
- 8
- Latest grant
- 14 Nov 1995
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Conversion of ISDN LAPB and ISDN LAPD frames14 Nov 1995US 5,467,350 AInternational Business Machines Corporation
- Digital telephone system with terminals connected to a digital exchange unit providing all functions of the terminals28 Mar 1995US 5,402,483 ASiemens Aktiengesellschaft
- Passive bus communication using alternate CRC2 Jan 1990US 4,891,813 ARacal Data Communications Inc.
No published applications in this class yet.
Most cited
By later US patents
- Passive bus communication using alternate CRC6US 4,891,813 ARacal Data Communications Inc. · 1990
- Digital telephone system with terminals connected to a digital exchange unit providing all functions of the terminals4US 5,402,483 ASiemens Aktiengesellschaft · 1995
- Conversion of ISDN LAPB and ISDN LAPD frames4US 5,467,350 AInternational Business Machines Corporation · 1995