375 patents currently held
20 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 Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
46
Ending by 2030
Dec 2026
Next term end
326
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 Sep 2031 · High confidence
Also notable
Ends Oct 2037 · High confidence
Also notable
Ends Apr 2033 · High confidence
Systems and Methods for Using Variable Mass Selection Window Widths in Tandem Mass Spectrometry
US 8,809,772
Cited by 20 later US patents, top 25% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
Methods and Systems for Increasing Sensitivity of Direct Sampling Interfaces for Mass Spectrometric Analysis
US 10,998,179
Cited by 11 later US patents, top 25% of utility patents granted in 2021 in our data. Protection runs to 2037.
Systems and Methods for Using Interleaving Window Widths in Tandem Mass Spectrometry
US 9,202,677
The largest patent family in this portfolio, 5 related applications, renewed at every maintenance window due so far. Protection runs to 2033.
Formerly held, still cited
Notable
Ends Sep 2031 · High confidence
Cited by 47 later US patents, top 25% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
now held by Eth Zurich
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.
- 3 fees due Dec 4 to 23, 2026 · next Dec 4
- 1 fee due Jan 9, 2027The maintenance fee for Differential Mobility Spectrometry Method (US 10,345,261) comes due Jan 9, 2027. Unpaid by Jul 9, 2027, it lapses early.
- 6 fees due Feb 4 to 27, 2027 · next Feb 4
- 8 fees due Mar 1 to 29, 2027 · next Mar 1
- 7 fees due Apr 15 to 27, 2027 · next Apr 15
- 9 fees due May 3 to 28, 2027 · next May 3
- 7 fees due Jun 1 to 19, 2027 · next Jun 1
- 8 fees due Jul 9 to 30, 2027 · next Jul 9
- 5 fees due Aug 9 to 23, 2027 · next Aug 9
- 5 fees due Sep 5 to 29, 2027 · next Sep 5
- 8 fees due Oct 2 to 26, 2027 · next Oct 2
- 1 fee due Nov 12, 2027The maintenance fee for Systems and Methods for Identifying Precursor and Product Ion Pairs in Scanning SWATH Data (US 10,651,019) comes due Nov 12, 2027. Unpaid by May 12, 2028, it lapses early.
Recent changes
- Oct 6Assignment recorded on 2 records: Corr, John J. and 3 others to DH Technologies Development Pte. Ltd. Recorded Oct 6, 2026, executed Oct 2, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76268, frame 180.
- Sep 14Assignment recorded on 1 record: Carew, Adam Curtis and 1 other to DH Technologies Development Pte. Ltd. Recorded Sep 14, 2026, executed Aug 12, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76003, frame 600.
- 28 of the patents on this record were granted since Aug 16, 2026
- 3 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 326 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,391,015 | System and Method for Data Collection in Recursive Mass Analysis In force · High confidence | In force | High confidence | |
| US 7,399,959 | Method and Apparatus for Enhanced Ion Based Sample Filtering and Detection In force · High confidence | In force | High confidence | |
| US 7,579,589 | Ultra Compact Ion Mobility Based Analyzer Apparatus, Method, and System In force · High confidence | In force | High confidence | |
| US 8,030,610 | Chemical Noise Reduction for Mass Spectrometry In force · High confidence | In force | High confidence | |
| US 7,459,679 | Method and Apparatus for Mass Selective Axial Transport Using Pulsed Axial Field In force · High confidence | In force | High confidence | |
| US 7,589,318 | Mass Defect Triggered Information Dependent Acquisition In force · High confidence | In force | High confidence | |
| US 7,587,285 | A Method for Identifying Correlated Variables In force · High confidence | In force | High confidence | |
| US 7,528,365 | Chemical Noise Reduction for Mass Spectrometry In force · High confidence | In force | High confidence | |
| US 8,581,178 | Combined Mass and Differential Mobility Spectrometry and Associated Methods, Systems, and Devices In force · High confidence | In force | High confidence | |
| US 7,759,637 | Method for Storing and Reacting Ions in a Mass Spectrometer In force · High confidence | In force | High confidence |
Also on record, not counted in the 375: 20 patents in force now held by others · 126 patents ended · 220 applications pending · 53 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.