41 patents currently held
14 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 Mar 2036. from the record
Of the 14 now held by other companies, 7 name TTP Ventus Limited as their current owner, and 7 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Mar 2036
Next term end
33
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 2036 · High confidence
Also notable
Ends Jul 2038 · High confidence
Also notable
Ends Nov 2037 · High confidence
Modular System
US 10,215,383
Cited by 22 later US patents, top 25% of utility patents granted in 2019 in our data. Protection runs to 2036. A terminal disclaimer caps this term to an earlier patent's.
Pressure Control System, Device and Method for Opening an Airway
US 10,925,801
Cited by 6 later US patents, top 25% of utility patents granted in 2021 in our data. Protection runs to 2038.
Counting Mechanism
US 10,929,742
Cited by 6 later US patents, top 25% of utility patents granted in 2021 in our data. Protection runs to 2037.
Formerly held, still cited
Notable
Ends May 2029 · High confidence
The most cited patent in this portfolio, cited by 137 later US patents, top 5% of utility patents granted in 2012 in our data. Protection runs to 2029.
now held by TTP Ventus Limited
Also notable
Ends Jul 2038 · High confidence
Cited by 4 later US patents, top 25% of utility patents granted in 2022 in our data. Protection runs to 2038.
now held by Cellular Origins Limited
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 May 7 to 26, 2027 · next May 7
- 1 fee due Jun 5, 2027The maintenance fee for Fluid Ejector System (US 11,835,537) comes due Jun 5, 2027. Unpaid by Dec 6, 2027, it lapses early.
- 1 fee due Jul 30, 2027The maintenance fee for Unit Verification Method and Device (US 11,889,003) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
- 1 fee due Nov 5, 2027The maintenance fee for Method for Deforming and/or Fragmenting a Cell, Spore or Virus with a Vibrating Plate (US 10,640,745) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
What they patent
The 5 largest of its 33 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Modular Lighting System | 4 in force | to Jul 2036 |
| Physically Unclonable Function Device (2022) | 2 in force | to Jul 2042 |
| Sample Preparation System and Cartridge | 2 in force | to Apr 2040 |
| Physically Unclonable Function Device (2020) | 2 in force | to Dec 2038 |
| Fluid Ejector System | 2 in force | to Dec 2038 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,488,356 | Method for Producing an Electrical Impedance Tomographic Image of an Acoustic Field and a System for Performing Said Method In force · High confidence | In force | High confidence | |
| US 9,568,171 | Modular Lighting System held by TTP Holdings, LLC In force · High confidence | In force | High confidence | |
| US 10,215,383 | Modular System held by TTP Holdings, LLC In force · High confidence | In force | High confidence | |
| US 10,782,007 | Modular System held by TTP Holdings, LLC In force · High confidence | In force | High confidence | |
| US 11,578,859 | Modular System held by TTP Holdings, LLC In force · Low confidence | In force | Low confidence | |
| US 10,640,745 | Method for Deforming and/or Fragmenting a Cell, Spore or Virus with a Vibrating Plate In force · High confidence | In force | High confidence | |
| US 10,940,502 | Linear Droplet Generating Device In force · High confidence | In force | High confidence | |
| US 11,544,520 | Counting Mechanism In force · High confidence | In force | High confidence | |
| US 10,857,538 | Sample Preparation System and Cartridge In force · High confidence | In force | High confidence | |
| US 11,529,288 | Integrated Cap and Seal System In force · High confidence | In force | High confidence |
Also on record, not counted in the 41: 14 patents in force now held by others · 5 patents ended · 18 applications pending · 16 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.