49 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Dec 2028. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
3
Ending by 2030
Dec 2028
Next term end
16
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 Mar 2033 · High confidence
Also notable
Ends Mar 2033 · High confidence
Also notable
Ends Nov 2030 · High confidence
Acoustophoretic Separation Technology Using Multi-Dimensional Standing Waves
US 9,458,450
The most cited patent in this portfolio, cited by 119 later US patents, top 5% of utility patents granted in 2016 in our data. Protection runs to 2033. A terminal disclaimer caps this term to an earlier patent's.
Methods and Apparatus for Particle Aggregation Using Acoustic Standing Waves
US 9,533,241
Cited by 64 later US patents, top 5% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2033. A terminal disclaimer caps this term to an earlier patent's.
Ultrasound and Acoustophoresis for Water Purification
US 10,427,956
Cited by 37 later US patents, top 10% of utility patents granted in 2019 in our data. Protection runs to 2030.
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 Dec 4 to 18, 2026 · next Dec 4
- 2 fees due Jan 16 to 25, 2027 · next Jan 16
- 1 fee due Feb 6, 2027The maintenance fee for Acoustic Separation of T Cells (US 10,370,635) comes due Feb 6, 2027. Unpaid by Aug 6, 2027, it lapses early.
- 1 fee due Apr 1, 2027The maintenance fee for Ultrasound and Acoustophoresis for Water Purification (US 10,427,956) comes due Apr 1, 2027. Unpaid by Oct 1, 2027, it lapses early.
- 1 fee due Jul 5, 2027The maintenance fee for Acoustophoretic Separation Technology Using Multi-Dimensional Standing Waves (US 9,228,183) comes due Jul 5, 2027. Unpaid by Jan 5, 2028, it lapses early.
- 1 fee due Aug 4, 2027The maintenance fee for Acoustophoretic Device for Angled Wave Particle Deflection (US 10,550,382) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
- 1 fee due Sep 1, 2027The maintenance fee for Separation of Multi-Component Fluid Through Ultrasonic Acoustophoresis (US 9,272,234) comes due Sep 1, 2027. Unpaid by Mar 1, 2028, it lapses early.
Recent changes
- 4 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 16 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Separation of Multi-Component Fluid Through Ultrasonic Acoustophoresis | 30 in force | to May 2035 |
| Acoustophoretic Device for Angled Wave Particle Deflection | 2 in force | to Jan 2038 |
| Acoustic Manipulation of Particles in Standing Wave Fields | 2 in force | to May 2036 |
| Acoustophoresis Device with Dual Acoustophoretic Chamber | 2 in force | to Dec 2035 |
| Large Scale Acoustic Separation Device | 2 in force | to Jul 2035 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D718,835 | Acoustic Separator In force · High confidence | In force | High confidence | |
| US D722,674 | Acoustic Separator In force · High confidence | In force | High confidence | |
| US 10,427,956 | Ultrasound and Acoustophoresis for Water Purification In force · High confidence | In force | High confidence | |
| US 9,745,548 | Acoustic Perfusion Devices In force · High confidence | In force | High confidence | |
| US 10,724,029 | Acoustophoretic Separation Technology Using Multi-Dimensional Standing Waves In force · High confidence | In force | High confidence | |
| US 10,814,253 | Large Scale Acoustic Separation Device In force · High confidence | In force | High confidence | |
| US 10,947,493 | Acoustic Perfusion Devices In force · High confidence | In force | High confidence | |
| US D787,630 | U-Turn Acoustic Separation Device In force · High confidence | In force | High confidence | |
| US D797,887 | Acoustic Separation Device In force · High confidence | In force | High confidence | |
| US 9,228,183 | Acoustophoretic Separation Technology Using Multi-Dimensional Standing Waves In force · High confidence | In force | High confidence |
Also on record, not counted in the 49: 39 patents ended · 1 application pending · 37 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.