478 patents currently held
29 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.
2 more records may belong here and await a decision; they are not counted.
The next term ends in Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
98
Ending by 2030
Dec 2026
Next term end
379
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 May 2031 · High confidence
Also notable
Ends Mar 2030 · High confidence
Also notable
Ends Dec 2036 · High confidence
Methods of forming bonded semiconductor structures using a temporary carrier having a weakened ion implant region for subsequent separation along the weakened region
US 8,461,017
The most cited patent in this portfolio, cited by 317 later US patents, top 1% of utility patents granted in 2013 in our data. Protection runs to 2031.
Methods of Forming Layers of Semiconductor Material Having Reduced Lattice Strain, Semiconductor Structures, Devices and Engineered Substrates Including Same
US 8,278,193
Cited by 89 later US patents, top 10% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2030.
Substrate for a Temperature-Compensated Surface Acoustic Wave Device or Volume Acoustic Wave Device
US 11,711,065
Cited by 4 later US patents, top 25% of utility patents granted in 2023 in our data. Protection runs to 2036. A terminal disclaimer caps this term to an earlier patent's.
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 Dec 2 to 27, 2026 · next Dec 2
- 7 fees due Jan 9 to 28, 2027 · next Jan 9
- 9 fees due Feb 15 to 28, 2027 · next Feb 15
- 5 fees due Mar 8 to 22, 2027 · next Mar 8
- 6 fees due Apr 1 to 24, 2027 · next Apr 1
- 7 fees due May 3 to 28, 2027 · next May 3
- 11 fees due Jun 1 to 29, 2027 · next Jun 1
- 12 fees due Jul 5 to 26, 2027 · next Jul 5
- 3 fees due Aug 2 to 27, 2027 · next Aug 2
- 12 fees due Sep 1 to 30, 2027 · next Sep 1
- 5 fees due Oct 12 to 30, 2027 · next Oct 12
- 5 fees due Nov 3 to 10, 2027 · next Nov 3
Recent changes
- Nov 9Assignment recorded on 1 record: Biard, Hugo and 4 others to Soitec Recorded Nov 9, 2026, executed Nov 6, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76688, frame 778.
- Nov 6Assignment recorded on 1 record: Drouin, Alexis and 2 others to Soitec Recorded Nov 6, 2026, executed Nov 6, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76671, frame 566.
- 10 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 379 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Heterostructure and Method of Fabrication | 5 in force | to Apr 2037 |
| Substrate for a Temperature-Compensated Surface Acoustic Wave Device or Volume Acoustic Wave Device | 4 in force | to Dec 2036 |
| Resonant Cavity Surface Acoustic Wave (SAW) Filters | 3 in force | to Sep 2040 |
| Method for Manufacturing a Hybrid Structure | 3 in force | to Sep 2039 |
| Structure for Radio Frequency Applications | 3 in force | to Jul 2039 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,446,019 | Method of Reducing Roughness of a Thick Insulating Layer In force · High confidence | In force | High confidence | |
| US 8,158,013 | Process for Bonding by Molecular Adhesion In force · Medium confidence | In force | Medium confidence | |
| US 7,939,387 | Patterned Thin Soi In force · High confidence | In force | High confidence | |
| US 7,585,749 | Methods of Forming a Layer of Material on a Substrate and Structures Formed Therefrom In force · High confidence | In force | High confidence | |
| US 7,645,682 | Bonding Interface Quality by Cold Cleaning and Hot Bonding In force · High confidence | In force | High confidence | |
| US 8,323,407 | Gallium Trichloride Injection Scheme In force · High confidence | In force | High confidence | |
| US 9,481,943 | Gallium Trichloride Injection Scheme In force · High confidence | In force | High confidence | |
| US 8,887,650 | Temperature-Controlled Purge Gate Valve for Chemical Vapor Deposition Chamber In force · High confidence | In force | High confidence | |
| US 8,273,636 | Process for the Transfer of a Thin Layer Formed in a Substrate with Vacancy Clusters In force · High confidence | In force | High confidence | |
| US 8,461,055 | Improved Process for Preparing Cleaned Surfaces of Strained Silicon In force · High confidence | In force | High confidence |
Also on record, not counted in the 478: 29 patents in force now held by others · 102 patents ended · 171 applications pending · 113 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.