H04M 15/38
Charging, billing or metering by apparatus other than mechanical step-by-step counter type
Official title: {Charging, billing or} metering by apparatus other than mechanical step-by-step counter type
H04M15/38 (Charging, billing or metering by apparatus other than mechanical step-by-step counter type) appears on 4 US grants and 1 published applications in this corpus.
Search patents in H04M- Granted patents
- 4
- Published applications
- 1
- Assignees
- 5
- Inventors
- 7
- Latest grant
- 4 Jan 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Communication charge manageable digital communication unit and a method of managing communication charge4 Jan 1994US 5,276,441 ASharp Kabushiki Kaisha
- Integrated accounting system12 Jun 1990US 4,933,931 AFujitsu Limited
- Method and apparatus for restricting credit card communication calls9 Jan 1990US 4,893,330 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories
- Photoelectric scanning systems for reading data appearing in an angular format9 Mar 1976US 3,943,336 AUniversal Business Machines
Most cited
By later US patents
- Method and apparatus for restricting credit card communication calls104US 4,893,330 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1990
- Integrated accounting system56US 4,933,931 AFujitsu Limited · 1990
- Photoelectric scanning systems for reading data appearing in an angular format18US 3,943,336 AUniversal Business Machines · 1976
- Communication charge manageable digital communication unit and a method of managing communication charge10US 5,276,441 ASharp Kabushiki Kaisha · 1994