5 patents currently held
37 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.
7 more records may belong here and await a decision; they are not counted.
The next term ends in Jul 2036. from the record
Of the 37 now held by other companies, 37 name Wastech Corp. as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Jul 2036
Next term end
4
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 Jul 2036 · High confidence
Also notable
Ends Mar 2039 · High confidence
Also notable
Ends Dec 2036 · High confidence
Waste Management System Implementing Remote Auditing
US 10,210,623
The most cited patent in this portfolio, cited by 63 later US patents, top 5% of utility patents granted in 2019 in our data. Protection runs to 2036. A terminal disclaimer caps this term to an earlier patent's.
System for Managing Utility and Waste Services
US 10,817,850
Cited by 27 later US patents, top 10% of utility patents granted in 2020 in our data. Protection runs to 2039.
Smart Waste Receptacle Providing Use-Incentive
US 10,185,935
The earliest of the three still in force, granted 2019 and renewed since. Its term ends first, in 2036.
Formerly held, still cited
Notable
Ends May 2036 · High confidence
Cited by 28 later US patents, top 10% of utility patents granted in 2019 in our data. Protection runs to 2036. A terminal disclaimer caps this term to an earlier patent's.
now held by Wastech Corp.
Also notable
Ends Dec 2037 · High confidence
Cited by 15 later US patents, top 10% of utility patents granted in 2022 in our data. Protection runs to 2037.
now held by Wastech Corp.
Also notable
Ends Dec 2038 · High confidence
Cited by 26 later US patents, top 10% of utility patents granted in 2020 in our data. Protection runs to 2038.
now held by Wastech Corp.
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
- 1 term has ended since Aug 16, 2026
What they patent
The 2 largest of its 4 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| System for Managing Utility and Waste Services | 2 in force | to Mar 2039 |
| Waste Management System Implementing Remote Auditing | 1 in force | to Jul 2036 |
Patents held now
Soonest term end first.
Showing 1 to 5 of 5
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,210,623 | Waste Management System Implementing Remote Auditing In force · High confidence | In force | High confidence | |
| US 10,185,935 | Smart Waste Receptacle Providing Use-Incentive In force · High confidence | In force | High confidence | |
| US 11,574,289 | System for Managing Utility and Waste Services In force · High confidence | In force | High confidence | |
| US 10,817,850 | System for Managing Utility and Waste Services In force · High confidence | In force | High confidence | |
| US 11,483,520 | System for Prevention and Remediation of Environmental Contaminants in Municipal Solid Waste and Recycling Facilities In force · High confidence | In force | High confidence |
Also on record, not counted in the 5: 37 patents in force now held by others · 16 patents ended · 6 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.