119 patents currently held
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 Oct 2029. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
11
Ending by 2030
Oct 2029
Next term end
30
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 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 Aug 2032 · High confidence
Also notable
Ends Dec 2031 · High confidence
Also notable
Ends Jan 2037 · High confidence
Support Apparatus for Moving Proppant from a Container in a Proppant Discharge System
US 9,771,224
Cited by 141 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 2032.
Bulk Material Shipping Container
US 8,616,370
The most cited patent in this portfolio, cited by 204 later US patents, top 5% of utility patents granted in 2013 in our data. Protection runs to 2031.
Conveyor with Integrated Dust Collector System
US 9,845,210
Cited by 37 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 2037.
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 Nov 30, 2026
- 1 fee due Dec 4, 2026The maintenance fee for Bulk Material Shipping Container Unloader (US 10,308,421) comes due Dec 4, 2026. Unpaid by Jun 4, 2027, it lapses early.
- 1 fee due Mar 3, 2027The maintenance fee for System and Method for Delivering Proppant to a Blender (US 10,399,789) comes due Mar 3, 2027. Unpaid by Sep 3, 2027, it lapses early.
- 1 fee due Apr 20, 2027The maintenance fee for Methods of Storing and Moving Proppant at Location Adjacent Rail Line (US 9,162,603) comes due Apr 20, 2027. Unpaid by Oct 20, 2027, it lapses early.
- 2 fees due May 5 to 26, 2027 · next May 5
- 1 fee due Jun 30, 2027The maintenance fee for Trailer Assembly for Transport of Containers of Proppant Material (US 10,518,828) comes due Jun 30, 2027. Unpaid by Jan 3, 2028, it lapses early.
- 2 fees due Jul 16 to 21, 2027 · next Jul 16
- 3 fees due Aug 2 to 25, 2027 · next Aug 2
- 4 fees due Sep 5 to 30, 2027 · next Sep 5
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 5 largest of its 30 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Proppant Storage Vessel and Assembly Thereof | 51 in force | to Feb 2034 |
| Conveyor with Integrated Dust Collector System | 13 in force | to Jan 2037 |
| Bulk Material Shipping Container | 11 in force | to Dec 2031 |
| System and Method for Delivering Proppant to a Blender | 5 in force | to Sep 2035 |
| Bulk Material Shipping Container Unloader | 4 in force | to Jan 2034 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US RE45,713 | Proppant Vessel Base In force · High confidence | In force | High confidence | |
| US RE45,788 | Proppant Vessel In force · High confidence | In force | High confidence | |
| US RE45,914 | Proppant Vessel In force · High confidence | In force | High confidence | |
| US 9,758,993 | Bulk Material Shipping Container In force · High confidence | In force | High confidence | |
| US 9,783,338 | Bulk Material Shipping Container In force · High confidence | In force | High confidence | |
| US 9,796,504 | Bulk Material Shipping Container In force · High confidence | In force | High confidence | |
| US 9,828,135 | Bulk Material Shipping Container In force · High confidence | In force | High confidence | |
| US 9,988,182 | Bulk Material Shipping Container In force · High confidence | In force | High confidence | |
| US 10,189,599 | Bulk Material Shipping Container In force · High confidence | In force | High confidence | |
| US 10,486,854 | Bulk Material Shipping Container In force · High confidence | In force | High confidence |
Also on record, not counted in the 119: 8 patents ended · 5 applications pending · 20 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.