32 patents currently held

17 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.

The next term ends in Jul 2030. from the record

Of the 17 now held by other companies, 17 name Aleddra Inc. as their current owner. Each row says so.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Jul 2030

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

2026202720282029203020312032 2033 2034 2035 2036 203720382039204020412042 2043 20442045

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

Optical Fiber Combiner US 11,592,620

Cited by 3 later US patents, top 25% of utility patents granted in 2023 in our data. Protection runs to 2042.

Ends Jan 2042 · High confidence Also notable

Packaging Of An Optical Fiber Combiner US 10,101,550

Granted 2018 and renewed at every maintenance window due so far. Protection runs to 2037.

Ends Oct 2037 · High confidence Also notable

Solid-State Lighting Compatible with Ballasts and Operable with Ac Mains US 9,544,959

The largest patent family in this portfolio, 11 related applications, renewed at every maintenance window due so far. Protection runs to 2032. A terminal disclaimer caps this term to an earlier patent's.

Ends Jun 2032 · Medium confidence

Formerly held, still cited

Notable

Linear Solid-State Lighting With A Wide Range Of Input Voltage And Frequency Free Of Fire And Shock Hazards US 9,288,867

Cited by 95 later US patents, top 5% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.

now held by Aleddra Inc.

Ends Jun 2032 · High confidence

Also notable

Linear Solid-State Lighting with Shock Protection Switches US 8,147,091

The most cited patent in this portfolio, cited by 143 later US patents, top 5% of utility patents granted in 2012 in our data. Protection runs to 2030.

now held by Aleddra Inc.

Ends Dec 2030 · High 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.

2 fees due Jan 11 to 16, 2027 · next Jan 11
2 fees due Feb 8 to 18, 2027 · next Feb 8
1 fee due Apr 3, 2027
The maintenance fee for Method For Manufacturing Optical Fiber Combiners (US 11,774,678) comes due Apr 3, 2027. Unpaid by Oct 4, 2027, it lapses early.
1 fee due Sep 22, 2027
The maintenance fee for MT Ferrule Adapter for Fitting MT Ferrule Assembly into Mpo Connector Receptacle (US 9,291,781) comes due Sep 22, 2027. Unpaid by Mar 22, 2028, it lapses early.
1 fee due Oct 28, 2027
The maintenance fee for Packaging Of A Fiber-Optic Transport Head With Heat Dispersion Mechanisms (US 10,634,852) comes due Oct 28, 2027. Unpaid by Apr 28, 2028, it lapses early.
1 fee due Nov 12, 2027
The maintenance fee for Field of View Converter for Fiber-Optic Connector Endface Inspector (US 10,649,154) comes due Nov 12, 2027. Unpaid by May 12, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was granted since Aug 16, 2026

What they patent

The 5 largest of its 25 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Optical Fiber Combiner	3 in force	to Aug 2042
Packaging Of An Optical Fiber Combiner	3 in force	to Oct 2037
Packaging Of A Fiber-Optic Transport Head With Heat Dispersion Mechanisms	2 in force	to Jul 2039
Optical Fiber Connector Inspector with Two-Dimensional Scanning Function	2 in force	to Jul 2037
Optical Assembly For 90° Polarization Rotatio	2 in force	to Jan 2036

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 8,104,976	Adaptive Device for Shifting Imaging Axis Across Fiber-Optic Endfaces in Multi-Fiber Connector for Inspection In force Term ends Jul 27, 2030 · High confidence	In force	Term ends Jul 27, 2030	High confidence
US 9,544,959	Solid-State Lighting Compatible with Ballasts and Operable with Ac Mains In force Term ends Jun 15, 2032 · Medium confidence	In force	Term ends Jun 15, 2032	Medium confidence
US 8,976,345	Fitting Tip with Relay Lens for Fiber-Optic Connector Endface Inspector In force Term ends Nov 22, 2033 · High confidence	In force	Term ends Nov 22, 2033	High confidence
US 8,988,670	Apparatus for Simultaneously Inspecting and Cleaning Fiber Connector In force Term ends Mar 15, 2034 · High confidence	In force	Term ends Mar 15, 2034	High confidence
US 9,110,252	Adaptive Device for Inspecting Endfaces of Fiber-Optic Connector Having Multiple Rows of Fibers In force Term ends Mar 24, 2034 · High confidence	In force	Term ends Mar 24, 2034	High confidence
US 9,551,888	Magneto-Optical Crystal Assembly For Broadband Temperature Stable Polarization Rotation In force (reinstated) Term ends Sep 29, 2034 · High confidence	In force (reinstated)	Term ends Sep 29, 2034	High confidence
US 9,541,776	Optical Assembly For 90° Polarization Rotatio In force Term ends Jan 12, 2035 · High confidence	In force	Term ends Jan 12, 2035	High confidence
US 9,417,444	User-Friendly Wireless Fiber Optic Endface Inspector In force Term ends May 25, 2035 · High confidence	In force	Term ends May 25, 2035	High confidence
US 9,291,781	MT Ferrule Adapter for Fitting MT Ferrule Assembly into Mpo Connector Receptacle In force Term ends Aug 3, 2035 · High confidence	In force	Term ends Aug 3, 2035	High confidence
US 9,823,500	Optical Assembly For 90° Polarization Rotatio In force Term ends Jan 4, 2036 · High confidence	In force	Term ends Jan 4, 2036	High confidence

10 of 32 patents shown.

Pro members see all 32.

Pro members: see all 32 patents

Also on record, not counted in the 32: 17 patents in force now held by others · 13 patents ended · 4 applications pending · 4 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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Lightel Technologies, Inc.