346 patents currently held
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
6 more records may belong here and await a decision; they are not counted.
The next term ends in Feb 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
45
Ending by 2030
Feb 2027
Next term end
175
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 Dec 2031 · High confidence
Also notable
Ends Oct 2031 · High confidence
Also notable
Ends Feb 2036 · High confidence
Spin-Torque Magnetoresistive Memory Element and Method of Fabricating Same
US 8,686,484
Cited by 110 later US patents, top 5% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
Process Integration of a Single Chip Three Axis Magnetic Field Sensor
US 8,518,734
Cited by 60 later US patents, top 10% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
Magnetoresistive Stack/Structure and Method of Manufacturing Same
US 9,793,470
Cited by 36 later US patents, top 10% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2036.
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.
- 6 fees due Nov 16 to 28, 2026 · next Nov 16
- 6 fees due Dec 2 to 27, 2026 · next Dec 2
- 3 fees due Jan 9 to 28, 2027 · next Jan 9
- 6 fees due Feb 18 to 27, 2027 · next Feb 18
- 7 fees due Mar 1 to 19, 2027 · next Mar 1
- 8 fees due Apr 3 to 29, 2027 · next Apr 3
- 7 fees due May 10 to 24, 2027 · next May 10
- 4 fees due Jun 10 to 24, 2027 · next Jun 10
- 6 fees due Jul 5 to 26, 2027 · next Jul 5
- 5 fees due Aug 9 to 27, 2027 · next Aug 9
- 17 fees due Sep 1 to 30, 2027 · next Sep 1
- 6 fees due Oct 5 to 30, 2027 · next Oct 5
- 6 fees due Nov 5 to 12, 2027 · next Nov 5
Recent changes
- 6 of the patents on this record were granted since Aug 16, 2026
- 2 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 175 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Process Integration of a Single Chip Three Axis Magnetic Field Sensor | 10 in force | to Oct 2031 |
| Spin-Torque Magnetoresistive Memory Element and Method of Fabricating Same | 9 in force | to Dec 2031 |
| Method of Manufacturing a Magnetoresistive-Based Device | 8 in force | to Mar 2033 |
| Method for Manufacturing and Magnetic Devices Having Double Tunnel Barriers | 8 in force | to Feb 2032 |
| Magnetoresistive Device Design and Process Integration with Surrounding Circuitry | 7 in force | to Nov 2035 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,445,943 | Magnetic Tunnel Junction Memory and Method with Etch-Stop Layer In force · High confidence | In force | High confidence | |
| US 7,543,211 | Toggle Memory Burst In force · High confidence | In force | High confidence | |
| US 7,502,253 | Spin-Transfer Based MRAM with Reduced Critical Current Density In force · High confidence | In force | High confidence | |
| US 7,605,437 | Spin-Transfer MRAM Structure and Methods In force · High confidence | In force | High confidence | |
| US 7,635,654 | Magnetic Tunnel Junction Device with Improved Barrier Layer In force · High confidence | In force | High confidence | |
| US 8,236,578 | Electronic Device Including a Magneto-Resistive Memory Device and a Process for Forming the Electronic Device In force · High confidence | In force | High confidence | |
| US 8,508,004 | Magnetic Element Having Reduced Current Density In force · High confidence | In force | High confidence | |
| US 8,237,437 | Two-Axis Magnetic Field Sensor with Multiple Pinning Directions In force · High confidence | In force | High confidence | |
| US 7,829,980 | Magnetoresistive Device and Method of Packaging Same In force · High confidence | In force | High confidence | |
| US 8,416,615 | Transmission Gate-Based Spin-Transfer Torque Memory Unit In force · High confidence | In force | High confidence |
Also on record, not counted in the 346: 1 patent in force now held by others · 157 patents ended · 42 applications pending · 23 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.