Patents
US 9763144 B2: Handset transitions in a dual-mode environment
- Granted
- 2017-09-12
- Filed
- 2015-05-20 application 14717160
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Embodiments of the invention provide novel solutions, including systems, methods and/or software, for handling calls in a dual-mode VoIP/cellular environment. Merely by way of example, some systems can be configured to determine whether to use a VoIP system or a cellular system to handle a particular call, and/or to transition a call from one network to the other network. Other systems can be configured to substitute a public number (which might be, for example, a VoIP number) for a private number (which might be, for example, a cellular number) when routing a call originating from a dual-mode phone on a cellular network. Further systems can be configured to allow a VoIP system to serve as an anchor for calls originated and/or delivered on a cellular system, for instance to facilitate a transition between cellular and VoIP service during a call.
Source: PVGPATDIS, file of 2026-04-10 (ipg170912.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Qwest Communications International Inc. 105 patents | US company or organization | Denver, CO | QWEST COMMUNICATIONS INTERNATIONAL INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Lance LaBauve | Highlands Ranch, CO | 3 | PVGPATDIS, file of 2026-04-10 | |
| Charles I. Cook | Louisville, CO | 122 | PVGPATDIS, file of 2026-04-10 | |
| Gilman R. Stevens | Fairview, TX | 13 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H04L | Transmission of digital information, e.g. telegraphic communication | H04L61/4557 | PVGPATDIS, file of 2026-04-10 |
| H04M | Telephonic communication | H04M7/006 | PVGPATDIS, file of 2026-04-10 |
| H04W | Wireless communication networks | H04W36/00226 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-04-15 | Release of security interest Release (reel 066874 / frame 0793) | BANK OF AMERICA, N.A. signed 2026-04-14 | QWEST COMMUNICATIONS INTERNATIONAL INC. DENVER, CO | 75405/877 | PASDL, file of 2026-09-27 |
| 2024-03-25 | Release of security interest Release of security interest | COMPUTERSHARE TRUST COMPANY, N.A, AS SUCCESSOR TO WELLS FARGO BANK, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT signed 2024-03-22 | QWEST COMMUNICATIONS INTERNATIONAL INC. MONROE, LA | 66885/917 | PASDL, file of 2026-10-15 |
| 2024-03-22 | Security interest Security interest Security agreement (first lien) | QWEST COMMUNICATIONS INTERNATIONAL INC. signed 2024-03-22 | BANK OF AMERICA, N.A., AS COLLATERAL AGENT CHARLOTTE, NC | 66874/793 | PASDL, file of 2026-10-15 |
| 2020-01-24 | Security interest Security interest Notes security agreement | QWEST COMMUNICATIONS INTERNATIONAL INC. signed 2020-01-24 | WELLS FARGO BANK, NATIONAL ASSOCIATION NEW YORK, NY | 51692/646 | PASDL, file of 2026-10-15 |
| 2017-11-01 | Security interest Security interest Security interest | QWEST COMMUNICATIONS INTERNATIONAL INC. signed 2017-11-01 | BANK OF AMERICA, N.A., AS COLLATERAL AGENT CHARLOTTE, NC | 44652/829 | PASDL, file of 2026-10-15 |
| 2015-05-20 | Assignment Assignment of assignor's interest | LABAUVE, LANCE signed 2006-10-06 STEVENS, GILMAN R. signed 2006-10-09 COOK, CHARLES I. signed 2006-10-26 | QWEST COMMUNICATIONS INTERNATIONAL INC. DENVER, CO | 35679/580 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.