H04Q 2213/13512
800 - freefone
H04Q2213/13512 (800 - freefone) appears on 42 US grants and 4 published applications in this corpus.
Search patents in H04Q- Granted patents
- 42
- Published applications
- 4
- Assignees
- 21
- Inventors
- 104
- Latest grant
- 11 May 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 9 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Internationally accessible communications11 May 2010US 7,715,545 B2Sprint Communications Co.L.P.
- Methods and apparatus for call service processing by instantiating an object that executes a compiled representation of a mark-up language description of operations for performing a call feature or service8 May 2007US 7,216,350 B2CopperCom, Inc.
- Internationally accessible communications24 Oct 2006US 7,127,055 B2Sprint Communications Co.L.P.
- Telecommunications portal capable of interpreting messages from an external device16 May 2006US 7,046,778 B2CopperCom, Inc.
- Method of establishing a toll-free communication connection, as well as a service unit, an exchange and a communications network29 Jan 2002US 6,343,123 B1
- Internationally accessible communications29 Mar 2007US 2007/0071215 A1Sprint Communications Co.L.P.
- Internationally accessible communications5 Aug 2004US 2004/0151297 A1Sprint Communications Company L.P.
- Methods and apparatus for call service processing4 Jul 2002US 2002/0085696 A1CopperCom, Inc.
- Telecommunications portal capable of interpreting messages from an external device30 May 2002US 2002/0064267 A1CopperCom, Inc.
Most cited
By later US patents
- Telephone system for connecting a customer to a supplier of goods744US 4,757,267 AApplied Telematics, Inc. · 1988
- Data base communication call processing method528US 4,191,860 ABell Telephone Laboratories, Incorporated · 1980
- Telephone call handling system420US 5,299,260 AUnifi Communications Corporation · 1994
- Method and system for dynamic customized call routing338US 5,530,744 AAT&T Corp. · 1996
- Dial-up telephone network equipment for requesting an identified selection266US 4,763,191 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1988