24 patents currently held

165 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.

25 more records may belong here and await a decision; they are not counted.

The next term ends in Aug 2027. from the record

Of the 165 now held by other companies, 154 name Boston Scientific Scimed Inc. as their current owner, and 11 more name another party. Each row says which.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Aug 2027

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027 2028202920302031 203220332034 203520362037 203820392040 2041 2042204320442045

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

Intravascular Ventricular Assist Device US 9,579,433

The most cited patent in this portfolio, cited by 90 later US patents, top 5% of utility patents granted in 2017 in our data. Protection runs to 2028.

Ends Feb 2028 · Medium confidence Also notable

Surgical Tool for Coring Precise Holes and Providing for Retrieval of Tissue US 10,357,274

Cited by 31 later US patents, top 10% of utility patents granted in 2019 in our data. Protection runs to 2027.

Ends Aug 2027 · High confidence Also notable

Physiologically Responsive Vad US 9,833,552

Cited by 24 later US patents, top 25% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2031. A terminal disclaimer caps this term to an earlier patent's.

Ends Jan 2031 · Medium confidence

Formerly held, still cited

Notable

Suction Detection on an Axial Blood Pump Using Bemf Data US 9,492,601

Cited by 158 later US patents, top 5% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2033.

now held by Medtronic, Inc.

Ends Apr 2033 · High confidence

Also notable

Tet System for Implanted Medical Device US 8,608,635

Cited by 161 later US patents, top 5% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.

now held by Boston Scientific Scimed, Inc.

Ends Sep 2032 · High confidence

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.

1 fee due Dec 18, 2026
The maintenance fee for Devices, Systems, and Methods for Facilitating Flow from the Heart to a Blood Pump (US 10,322,217) comes due Dec 18, 2026. Unpaid by Jun 21, 2027, it lapses early.
1 fee due Jan 23, 2027
The maintenance fee for Surgical Tool for Coring Precise Holes and Providing for Retrieval of Tissue (US 10,357,274) comes due Jan 23, 2027. Unpaid by Jul 23, 2027, it lapses early.
1 fee due Feb 6, 2027
The maintenance fee for Blood Pump with Separate Mixed-Flow and Axial-Flow Impeller Stages, Components Therefor and Related Methods (US 10,371,150) comes due Feb 6, 2027. Unpaid by Aug 6, 2027, it lapses early.
1 fee due Apr 15, 2027
The maintenance fee for Axial Flow Blood Pump with Radially Offset Rotor (US 10,441,693) comes due Apr 15, 2027. Unpaid by Oct 15, 2027, it lapses early.
1 fee due May 7, 2027
The maintenance fee for Passive Thrust Bearing Angle (US 11,806,518) comes due May 7, 2027. Unpaid by Nov 8, 2027, it lapses early.
2 fees due Aug 11 to 13, 2027 · next Aug 11
1 fee due Sep 3, 2027
The maintenance fee for Inflow Cannula (US 10,576,191) comes due Sep 3, 2027. Unpaid by Mar 3, 2028, it lapses early.
1 fee due Oct 30, 2027
The maintenance fee for Blood Pump Impeller (US 11,969,586) comes due Oct 30, 2027. Unpaid by May 1, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 term has ended since Aug 16, 2026

What they patent

The 5 largest of its 18 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Intravascular Ventricular Assist Device	4 in force	to Feb 2028
Method of Monitoring Health Conditions of a Patient Having an Implantable Blood Pump	2 in force	to Nov 2040
Pump to Motor Connection System	2 in force	to Apr 2038
Blood Pump with In-Situ Attaching Motor Stators	2 in force	to Feb 2038
Blood Pump Impeller	1 in force	to Jul 2042

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 10,357,274	Surgical Tool for Coring Precise Holes and Providing for Retrieval of Tissue In force Term ends Aug 22, 2027 · High confidence	In force	Term ends Aug 22, 2027	High confidence
US 9,579,433	Intravascular Ventricular Assist Device In force Term ends Feb 26, 2028 · Medium confidence	In force	Term ends Feb 26, 2028	Medium confidence
US 9,895,476	Intravascular Ventricular Assist Device In force Term ends Feb 26, 2028 · Medium confidence	In force	Term ends Feb 26, 2028	Medium confidence
US 10,052,421	Intravascular Ventricular Assist Device In force Ends no later than Feb 26, 2028 · Low confidence	In force	Ends no later than Feb 26, 2028	Low confidence
US 10,251,986	Intravascular Ventricular Assist Device In force Term ends Feb 26, 2028 · Medium confidence	In force	Term ends Feb 26, 2028	Medium confidence
US 9,833,552	Physiologically Responsive Vad held by Boston Scientific Scimed, Inc. In force Term ends Jan 18, 2031 · Medium confidence	In force	Term ends Jan 18, 2031	Medium confidence
US 10,371,150	Blood Pump with Separate Mixed-Flow and Axial-Flow Impeller Stages, Components Therefor and Related Methods In force Term ends Mar 14, 2032 · Medium confidence	In force	Term ends Mar 14, 2032	Medium confidence
US 10,322,217	Devices, Systems, and Methods for Facilitating Flow from the Heart to a Blood Pump In force Ends no later than Feb 28, 2034 · Low confidence	In force	Ends no later than Feb 28, 2034	Low confidence
US 9,675,742	Fiducial Point Optimization held by Boston Scientific Scimed, Inc. In force Term ends Nov 24, 2035 · High confidence	In force	Term ends Nov 24, 2035	High confidence
US 10,188,423	Multi-Piece Gimbal Ring In force Term ends Mar 10, 2037 · High confidence	In force	Term ends Mar 10, 2037	High confidence

10 of 24 patents shown.

Pro members see all 24.

Pro members: see all 24 patents

Also on record, not counted in the 24: 165 patents in force now held by others · 59 patents ended · 4 applications pending · 29 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.

Export every term end as CSV · Pro

HeartWare, Inc.