H04Q 2213/375
Electronic mail
H04Q2213/375 (Electronic mail) appears on 7 US grants and 0 published applications in this corpus.
Search patents in H04Q- Granted patents
- 7
- Published applications
- 0
- Assignees
- 5
- Inventors
- 11
- Latest grant
- 30 Dec 1997
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Communication apparatus receiving information from portable information medium30 Dec 1997US 5,703,936 ACanon Kabushiki Kaisha
- Digital telephone29 Jul 1997US 5,652,753 AAlcatel
- Office communication system23 Nov 1993US 5,265,205 AGrundig E. M. V.
- Text mail system using ISDN and ISDN communication terminal device for use therein16 Nov 1993US 5,263,082 AKabushiki Kaisha Toshiba
- Communication terminal apparatus, and communication method14 Jul 1992US 5,130,818 ACanon Kabushiki Kaisha
No published applications in this class yet.
Most cited
By later US patents
- Telephone station set102US 4,922,490 AAmerican Telephone and Telegraph Company · 1990
- Communication terminal device67US 5,042,028 AKabushiki Kaisha Toshiba · 1991
- Office communication system24US 5,265,205 AGrundig E. M. V. · 1993
- Communication terminal apparatus, and communication method20US 5,130,818 ACanon Kabushiki Kaisha · 1992
- Text mail system using ISDN and ISDN communication terminal device for use therein13US 5,263,082 AKabushiki Kaisha Toshiba · 1993