1,779 patents currently held

984 more in force are now held by other companies

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

16 more records may belong here and await a decision; they are not counted.

The next term ends in Nov 2026. from the record

Of the 984 now held by other companies, 280 name At and T Mobility II LLC as their current owner, and 704 more name another party. Each row says which.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

379

Ending by 2030

Nov 2026

Next term end

1,420

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045

notable patents fee due within 90 days all others Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank

Notable

Methods, Systems, and Computer Program Products for Schedule Management Based on Locations of Wireless Devices US 7,941,133

Cited by 460 later US patents, top 1% of utility patents granted in 2011 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.

Ends Oct 2029 · High confidence Also notable

Launcher with Cylindrical Coupling Device and Methods for Use Therewith US 10,340,573

Cited by 265 later US patents, top 1% of utility patents granted in 2019 in our data. Protection runs to 2037.

Ends Sep 2037 · High confidence Also notable

Apparatus and Methods for Generating Non-Interfering Electromagnetic Waves on an Insulated Transmission Medium US 10,320,586

Cited by 698 later US patents, top 1% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2036. A terminal disclaimer caps this term to an earlier patent's.

Ends Apr 2036 · Low confidence

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

5 fees due Nov 19 to 28, 2026 · next Nov 19
13 fees due Dec 4 to 30, 2026 · next Dec 4
21 fees due Jan 2 to 28, 2027 · next Jan 2
19 fees due Feb 1 to 27, 2027 · next Feb 1
26 fees due Mar 1 to 29, 2027 · next Mar 1
23 fees due Apr 1 to 29, 2027 · next Apr 1
15 fees due May 5 to 26, 2027 · next May 5
1 fee due Jun 26, 2027
The maintenance fee for Testing Automation for Open Standard Cloud Services Applications (US 11,853,197) comes due Jun 26, 2027. Unpaid by Dec 27, 2027, it lapses early.
4 fees due Jul 9 to 30, 2027 · next Jul 9
4 fees due Aug 4 to 27, 2027 · next Aug 4
7 fees due Sep 3 to 19, 2027 · next Sep 3
7 fees due Oct 9 to 30, 2027 · next Oct 9
4 fees due Nov 5 to 7, 2027 · next Nov 5

Which patents, and when each one lapses · Pro

Recent changes

104 of the patents on this record were granted since Aug 16, 2026
282 terms have ended since Aug 16, 2026

What they patent

The 5 largest of its 1,420 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Apparatus and Methods for Sending or Receiving Electromagnetic Signals	11 in force	to Apr 2036
Launcher with Cylindrical Coupling Device and Methods for Use Therewith	10 in force	to Sep 2037
Method, Device and Storage Medium for Communications Using a Modulated Signal and a Reference Signal	7 in force	to Apr 2036
Method and Apparatus for Acoustic Sensing Using Multiple Optical Pulses	5 in force	to Mar 2030
Methods, Systems, and Devices for Configuring a Federated Blockchain Network	4 in force	to Sep 2041

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 8,625,992	Method and Apparatus for Enabling Multiple Optical Line Termination Devices to Share a Feeder Fiber In force Term ends Nov 28, 2026 · High confidence	In force	Term ends Nov 28, 2026	High confidence
US 8,655,175	Method and Apparatus for Enabling Multiple Passive Optical Networks to Share One or More Sources In force Term ends Nov 28, 2026 · High confidence	In force	Term ends Nov 28, 2026	High confidence
US 7,627,326	Spectrum Management System for Municipal Spectrum Using Guided Cognitive Radio In force Term ends Dec 2, 2026 · High confidence	In force	Term ends Dec 2, 2026	High confidence
US 7,660,755	Methods, Systems, and Computer-Readable-Mediums for Managing Rollover Usage Units of Communication Services held by AT&T Intellectual Property I, L.P. In force Term ends Dec 5, 2026 · High confidence	In force	Term ends Dec 5, 2026	High confidence
US 7,453,999	Prepaid Services with Security Provisions to Protect Against Unauthorized Use In force Term ends Dec 11, 2026 · High confidence	In force	Term ends Dec 11, 2026	High confidence
US 11,354,385	Wireless Communications Devices with a Plurality of Profiles held by AT&T Intellectual Property I, L.P. In force Term ends Dec 12, 2026 · High confidence	In force	Term ends Dec 12, 2026	High confidence
US 7,558,274	Interworking Oam Between Ethernet and Atm/Frame Relay Networks In force Term ends Dec 16, 2026 · High confidence	In force	Term ends Dec 16, 2026	High confidence
US 10,424,339	Marking Media Files held by AT&T Intellectual Property I, L.P. In force Term ends Dec 18, 2026 · High confidence	In force	Term ends Dec 18, 2026	High confidence
US 11,250,885	Marking Media Files held by AT&T Intellectual Property I, L.P. In force Term ends Dec 18, 2026 · High confidence	In force	Term ends Dec 18, 2026	High confidence
US 11,653,043	Pausing and Resuming Media Files held by AT&T Intellectual Property I, L.P. In force Term ends Dec 18, 2026 · Medium confidence	In force	Term ends Dec 18, 2026	Medium confidence

10 of 1,779 patents shown.

Pro members see all 1,779.

Pro members: see all 1,779 patents

Also on record, not counted in the 1,779: 984 patents in force now held by others · 5,611 patents ended · 915 applications pending · 885 applications abandoned. List them

Sources and methods

Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built

Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.

Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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