23 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.

The next term ends in Oct 2035. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Oct 2035

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

2026202720282029203020312032203320342035203620372038 2039 2040 2041 2042204320442045

notable patents 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.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank

Notable

Rowing Exercise Machines Having a Configurable Rowing Feel US 10,828,531

Cited by 35 later US patents, top 5% of utility patents granted in 2020 in our data. Protection runs to 2039.

Ends May 2039 · High confidence Also notable

Rowing US 10,471,297

The most cited patent in this portfolio, cited by 53 later US patents, top 5% of utility patents granted in 2019 in our data. Protection runs to 2038.

Ends May 2038 · High confidence Also notable

Rowing Machine US D984,562

A family of 7 related applications built on the 2023 grant. Protection runs to 2038.

Ends Apr 2038 · 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 Mar 26, 2027
The maintenance fee for Rowing System and Method (US 11,766,588) comes due Mar 26, 2027. Unpaid by Sep 27, 2027, it lapses early.
1 fee due May 12, 2027
The maintenance fee for Rowing (US 10,471,297) comes due May 12, 2027. Unpaid by Nov 12, 2027, it lapses early.
1 fee due Aug 20, 2027
The maintenance fee for Rowing Exercise Machines Having A Configurable Rowing Feel (US 11,904,200) comes due Aug 20, 2027. Unpaid by Feb 22, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

2 of the patents on this record were granted since Aug 16, 2026

What they patent

The 5 largest of its 7 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Rowing Machine	7 in force	to Apr 2038
Rowing Exercise Machines Having a Configurable Rowing Feel	4 in force	to Dec 2039
Rowing	4 in force	to Jun 2038
Modular Transportable Exercise Apparatus and Methods	3 in force	to Dec 2042
Exercise Equipment Mounting Apparatus and Methods	2 in force	to Jul 2042

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US D898,843	Rowing Machine In force Term ends Oct 13, 2035 · High confidence	In force	Term ends Oct 13, 2035	High confidence
US D974,499	Rowing Machine In force Term ends Jan 3, 2038 · High confidence	In force	Term ends Jan 3, 2038	High confidence
US D974,500	Rowing Machine In force Term ends Jan 3, 2038 · High confidence	In force	Term ends Jan 3, 2038	High confidence
US D975,214	Rowing Machine In force Term ends Jan 10, 2038 · High confidence	In force	Term ends Jan 10, 2038	High confidence
US D981,511	Rowing Machine In force Term ends Jan 10, 2038 · High confidence	In force	Term ends Jan 10, 2038	High confidence
US D979,670	Rowing Machine In force Term ends Feb 28, 2038 · High confidence	In force	Term ends Feb 28, 2038	High confidence
US D984,562	Rowing Machine In force Term ends Apr 25, 2038 · High confidence	In force	Term ends Apr 25, 2038	High confidence
US 10,471,297	Rowing In force Term ends May 16, 2038 · High confidence	In force	Term ends May 16, 2038	High confidence
US 11,766,588	Rowing System and Method In force Term ends May 16, 2038 · High confidence	In force	Term ends May 16, 2038	High confidence
US 12,311,223	Rowing System and Method In force Term ends May 16, 2038 · High confidence	In force	Term ends May 16, 2038	High confidence

10 of 23 patents shown.

Pro members see all 23.

Pro members: see all 23 patents

Also on record, not counted in the 23: 1 patent in force now held by others · 4 applications pending. 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.

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

Hydrow, Inc.