30 patents currently held

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

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

The next term ends in Dec 2027. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Dec 2027

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027 2028 2029 2030 203120322033 203420352036 203720382039 204020412042204320442045

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

System and Method for Safety Management in Roll-Up Doors US 10,619,397

Cited by 22 later US patents, top 10% of utility patents granted in 2020 in our data. Protection runs to 2036.

Ends Sep 2036 · High confidence Also notable

High Speed Door Assembly US 8,360,132

The most cited patent in this portfolio, cited by 29 later US patents, top 25% of utility patents granted in 2013 in our data. Protection runs to 2028. A terminal disclaimer caps this term to an earlier patent's.

Ends Jun 2028 · High confidence Also notable

Wind Lock Configuration For Overhead Roll-Up Doors US 8,887,790

Cited by 19 later US patents, top 25% of utility patents granted in 2014 in our data, and renewed at every maintenance window due so far. Protection runs to 2031.

Ends Oct 2031 · 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.

1 fee due Feb 4, 2027
The maintenance fee for High-Speed Door Assembly (US 9,097,053) comes due Feb 4, 2027. Unpaid by Aug 4, 2027, it lapses early.
1 fee due Mar 22, 2027
The maintenance fee for Switch Ladder Sensor for Roll-Up Door (US 9,140,063) comes due Mar 22, 2027. Unpaid by Sep 22, 2027, it lapses early.
1 fee due Apr 30, 2027
The maintenance fee for Safety System and Method for Overhead Roll-Up Doors (US 11,804,114) comes due Apr 30, 2027. Unpaid by Nov 1, 2027, it lapses early.
2 fees due May 17, 2027
1 fee due Aug 16, 2027
The maintenance fee for Door Panel for Overhead Roll-Up Doors and a Method for Creating the Same (US 9,260,911) comes due Aug 16, 2027. Unpaid by Feb 16, 2028, it lapses early.
2 fees due Oct 14 to 26, 2027 · next Oct 14
1 fee due Nov 7, 2027
The maintenance fee for Roll-Up Thermal Barrier (US 11,975,521) comes due Nov 7, 2027. Unpaid by May 8, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nov 12Assignment recorded on 1 record: Gregoriou, Daniel J. to Rytec Corporation Recorded Nov 12, 2026, executed Jan 31, 2022. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76736, frame 566.
2 of the patents on this record were granted since Aug 16, 2026

What they patent

The 5 largest of its 17 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

System and Method for Safety Management in Roll-Up Doors	4 in force	to Sep 2037
Door Assembly Having a Soft Bottomed Door Panel and System and Method of Driving the Same	2 in force	to Jul 2040
Safety System and Method for Overhead Roll-Up Doors	2 in force	to May 2040
Roll-Up Thermal Barrier	2 in force	to Oct 2034
Wind Lock Configuration For Overhead Roll-Up Doors	2 in force	to Oct 2031

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 9,097,053	High-Speed Door Assembly In force Term ends Dec 27, 2027 · High confidence	In force	Term ends Dec 27, 2027	High confidence
US 8,439,101	Self-Aligning Door Jamb Track In force Term ends Mar 20, 2028 · Medium confidence	In force	Term ends Mar 20, 2028	Medium confidence
US 8,678,070	Self-Aligning Door Jamb Track In force Term ends Mar 20, 2028 · Low confidence	In force	Term ends Mar 20, 2028	Low confidence
US 8,360,132	High Speed Door Assembly In force Term ends Jun 20, 2028 · High confidence	In force	Term ends Jun 20, 2028	High confidence
US 8,316,915	High Speed Door Assembly In force Term ends Jan 2, 2029 · High confidence	In force	Term ends Jan 2, 2029	High confidence
US 8,857,491	Draft Arrester In force Term ends Mar 18, 2029 · High confidence	In force	Term ends Mar 18, 2029	High confidence
US 8,333,229	Draft Arrester In force Term ends May 16, 2029 · High confidence	In force	Term ends May 16, 2029	High confidence
US 9,186,427	Method and Device for Preventing Contamination from a Door Which Opens Vertically In force Term ends Jan 28, 2030 · High confidence	In force	Term ends Jan 28, 2030	High confidence
US 8,627,605	Method and Device for Preventing Contamination from a Door Which Opens Vertically In force Term ends Mar 22, 2030 · High confidence	In force	Term ends Mar 22, 2030	High confidence
US 9,322,212	Wind Lock Configuration for Overhead Roll-Up Doors In force Term ends Sep 22, 2031 · High confidence	In force	Term ends Sep 22, 2031	High confidence

10 of 30 patents shown.

Pro members see all 30.

Pro members: see all 30 patents

Also on record, not counted in the 30: 9 patents ended · 9 applications pending · 14 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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Rytec Corporation