333 patents currently held
7 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.
60
Ending by 2030
Dec 2026
Next term end
256
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 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 2032 · High confidence
Also notable
Ends Sep 2037 · High confidence
Also notable
Ends Jan 2034 · High confidence
Compositions and Processes for Depositing Carbon-Doped Silicon-Containing Films
US 9,447,287
Cited by 347 later US patents, top 1% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.
Precursors and Flowable CVD Methods for Making Low-K Films to Fill Surface Features
US 10,468,244
Cited by 390 later US patents, top 1% of utility patents granted in 2019 in our data. Protection runs to 2037.
Methods for Depositing Films with Organoaminodisilane Precursors
US 9,337,018
Cited by 579 later US patents, top 1% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2034.
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.
- 7 fees due Dec 6 to 25, 2026 · next Dec 6
- 3 fees due Jan 4 to 18, 2027 · next Jan 4
- 8 fees due Feb 1 to 28, 2027 · next Feb 1
- 7 fees due Mar 3 to 24, 2027 · next Mar 3
- 4 fees due Apr 13 to 29, 2027 · next Apr 13
- 4 fees due May 5 to 19, 2027 · next May 5
- 9 fees due Jun 1 to 29, 2027 · next Jun 1
- 4 fees due Jul 12 to 30, 2027 · next Jul 12
- 4 fees due Aug 18 to 27, 2027 · next Aug 18
- 4 fees due Sep 12 to 22, 2027 · next Sep 12
- 7 fees due Oct 2 to 19, 2027 · next Oct 2
- 4 fees due Nov 3 to 12, 2027 · next Nov 3
Recent changes
- 4 of the patents on this record were granted since Aug 17, 2026
- 8 terms have ended since Aug 17, 2026
What they patent
The 5 largest of its 256 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 8,530,361 | Process for Producing Silicon and Oxide Films from Organoaminosilane Precursors In force · High confidence | In force | High confidence | |
| US 7,968,465 | Periodic Acid Compositions for Polishing Ruthenium/Low K Substrates In force · High confidence | In force | High confidence | |
| US 7,477,444 | Electro-Optic Display and Materials for Use Therein In force · High confidence | In force | High confidence | |
| US 8,114,775 | Dihydroxy Enol Compounds Used in Chemical Mechanical Polishing Compositions Having Metal Ion Oxidizers In force · High confidence | In force | High confidence | |
| US 7,481,074 | Self-Contained Distillation Purifier/Superheater for Liquid-Fill Product Container and Delivery Systems In force · High confidence | In force | High confidence | |
| US 7,986,450 | Electro-Optic Display and Materials for Use Therein In force · High confidence | In force | High confidence | |
| US 8,329,933 | Low-Impurity Organosilicon Product as Precursor for CVD In force · High confidence | In force | High confidence | |
| US 8,759,563 | Low-Impurity Organosilicon Product as Precursor for CVD In force · High confidence | In force | High confidence | |
| US 8,030,263 | Composition for Stripping and Cleaning and Use Thereof In force · High confidence | In force | High confidence | |
| US 7,875,556 | Precursors for CVD Silicon Carbo-Nitride and Silicon Nitride Films In force · High confidence | In force | High confidence |
Also on record, not counted in the 333: 7 patents in force now held by others · 279 patents ended · 118 applications pending · 205 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.