47 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.
3 more records may belong here and await a decision; they are not counted.
The next term ends in Nov 2028. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
17
Ending by 2030
Nov 2028
Next term end
13
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 no later than Jan 2029 · Medium confidence
Also notable
Ends Jul 2031 · Medium confidence
Also notable
Ends May 2030 · High confidence
Aerodynamic Trailer Skirts
US 7,887,120
The most cited patent in this portfolio, cited by 143 later US patents, top 5% of utility patents granted in 2011 in our data. Protection runs to 2029. A terminal disclaimer is on file and its reference is not resolved, so no cap is applied and the date may move earlier, never later.
Aerodynamic Trucking Systems
US 10,189,514
Cited by 31 later US patents, top 10% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2031.
Devices and Methods for Reducing Vehicle Drag
US 8,251,436
Cited by 92 later US patents, top 10% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. 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.
- 1 fee due Dec 16, 2026The maintenance fee for Devices and Methods for Reducing Vehicle Drag (US 9,056,636) comes due Dec 16, 2026. Unpaid by Jun 16, 2027, it lapses early.
- 1 fee due Feb 20, 2027The maintenance fee for Beam Connector and Method of Installation Thereof (US 10,384,728) comes due Feb 20, 2027. Unpaid by Aug 20, 2027, it lapses early.
- 1 fee due Mar 17, 2027The maintenance fee for Support System for Aerodynamic Skirt Assembly and Method of Installation Thereof (US 10,414,448) comes due Mar 17, 2027. Unpaid by Sep 17, 2027, it lapses early.
- 1 fee due Apr 3, 2027The maintenance fee for Aerodynamic Trucking Systems (US 11,772,718) comes due Apr 3, 2027. Unpaid by Oct 4, 2027, it lapses early.
- 1 fee due Jun 8, 2027The maintenance fee for Drag Reducing Mirror Assemblies for Vehicles (US 9,205,778) comes due Jun 8, 2027. Unpaid by Dec 8, 2027, it lapses early.
- 1 fee due Sep 10, 2027The maintenance fee for Aerodynamic Trucking Systems (US 10,583,873) comes due Sep 10, 2027. Unpaid by Mar 10, 2028, it lapses early.
- 1 fee due Oct 30, 2027The maintenance fee for Methods and Apparatus for a Strut Assembly for an Aerodynamic Trucking System (US 11,970,218) comes due Oct 30, 2027. Unpaid by May 1, 2028, it lapses early.
- 2 fees due Nov 5 to 7, 2027 · next Nov 5
Recent changes
- 1 term has ended since Aug 16, 2026
What they patent
The 5 largest of its 13 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Aerodynamic Trucking Systems | 13 in force | to Oct 2031 |
| Aerodynamic Trailer Skirts | 11 in force | to Jan 2029 |
| Support System for Aerodynamic Skirt Assembly and Method of Installation Thereof | 4 in force | to May 2037 |
| Devices and Methods for Reducing Vehicle Drag | 4 in force | to May 2030 |
| Multi-Panel Skirt System for Cargo Enclosures | 3 in force | to Jul 2040 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,789,453 | Trailer Keel In force · High confidence | In force | High confidence | |
| US 7,748,772 | Resilient Aerodynamic Trailer Skirts In force · High confidence | In force | High confidence | |
| US 7,887,120 | Aerodynamic Trailer Skirts In force · Medium confidence | In force | Medium confidence | |
| US 7,938,475 | Aerodynamic Skirt Wheel Interface In force · High confidence | In force | High confidence | |
| US 7,942,467 | Aerodynamic Skirt Support Member In force · High confidence | In force | High confidence | |
| US 7,942,468 | Aerodynamic Skirt Securing Mechanism In force · High confidence | In force | High confidence | |
| US 7,942,469 | Aerodynamic Skirt Panel In force · High confidence | In force | High confidence | |
| US 7,942,470 | Aerodynamic Skirt Opening In force · High confidence | In force | High confidence | |
| US 7,942,471 | Aerodynamic Skirt Shape In force · High confidence | In force | High confidence | |
| US 8,292,351 | Aerodynamic Skirt In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 47: 1 patent in force now held by others · 14 patents ended · 8 applications pending · 4 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.