608 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
1 more record may belong here and awaits a decision; it is not counted.
The next term ends in Nov 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
68
Ending by 2030
Nov 2026
Next term end
586
Patent families
When these terms end
Held patents by the year their term ends
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
Ends Jul 2028 · High confidence
Also notable
Ends Nov 2026 · High confidence
Also notable
Ends Mar 2027 · High confidence
Elevator Installation Operating Method for Transporting Elevator Users
US 8,061,485
The most cited patent in this portfolio, cited by 65 later US patents, top 10% of utility patents granted in 2011 in our data. Protection runs to 2028.
Elevator Supervision
US 7,353,916
The largest patent family in this portfolio, 22 related applications, renewed at 3 of 3 maintenance windows. Protection runs to 2026.
A System and Method for Determining a Destination Story Based on Movement Direction of a Person on an Access Story
US 8,210,321
The largest patent family in this portfolio, 25 related applications, renewed at 3 of 3 maintenance windows. Protection runs to 2027.
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 30, 2026 · next Nov 19
- 10 fees due Dec 2 to 23, 2026 · next Dec 2
- 12 fees due Jan 2 to 30, 2027 · next Jan 2
- 4 fees due Feb 4 to 20, 2027 · next Feb 4
- 8 fees due Mar 1 to 26, 2027 · next Mar 1
- 14 fees due Apr 1 to 29, 2027 · next Apr 1
- 14 fees due May 7 to 26, 2027 · next May 7
- 9 fees due Jun 1 to 30, 2027 · next Jun 1
- 8 fees due Jul 2 to 30, 2027 · next Jul 2
- 19 fees due Aug 2 to 27, 2027 · next Aug 2
- 7 fees due Sep 3 to 29, 2027 · next Sep 3
- 11 fees due Oct 2 to 30, 2027 · next Oct 2
- 3 fees due Nov 7 to 10, 2027 · next Nov 7
Recent changes
- 17 of the patents on this record were granted since Aug 16, 2026
- 14 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 586 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Elevator Car Operating Panel | 3 in force | to Jan 2038 |
| Method and Device for Detecting a Deterioration State of a Load Bearing Capacity in a Suspension Member Arrangement for an Elevator | 3 in force | to Apr 2037 |
| Weighting Sensor Data with Environmental Data in a System for Transportation of Passengers | 2 in force | to Feb 2040 |
| Operating and Display Panel for Elevators (2020) | 2 in force | to Nov 2037 |
| Operating and Display Panel for Elevators (2020) | 2 in force | to Jul 2037 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,353,916 | Elevator Supervision In force · High confidence | In force | High confidence | |
| US 7,370,732 | Method and Device for Automatic Checking of the Availability of an Elevator Installation In force · High confidence | In force | High confidence | |
| US 7,665,581 | Method and Device for Automatic Checking of the Availability of Technical Equipment in or at a Building In force · Medium confidence | In force | Medium confidence | |
| US 7,398,861 | Elevator Monitoring Unit and Procedure for the Maintenance of an Elevator Unit In force · High confidence | In force | High confidence | |
| US 7,445,090 | Device and Method for Elevator Information Display In force · High confidence | In force | High confidence | |
| US 7,677,364 | Elevator Installation Comprising a Light Module in the Door Sill Profile In force · High confidence | In force | High confidence | |
| US 7,503,434 | Inputting or Adjusting Reference Positions in a Door Controller In force · High confidence | In force | High confidence | |
| US 8,210,321 | A System and Method for Determining a Destination Story Based on Movement Direction of a Person on an Access Story In force · High confidence | In force | High confidence | |
| US 7,533,762 | Lift with Support Means and Drive Means In force · High confidence | In force | High confidence | |
| US 7,537,089 | Elevator Installation with Individually Movable Elevator Cars and Method for Operating Such an Elevator Installation In force · High confidence | In force | High confidence |
Also on record, not counted in the 608: 510 patents ended · 218 applications pending · 227 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.