Maintenance fees coming due

Arq Solutions, LLC

15 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 4, 2026. Unpaid by Jun 4, 2027, that one lapses early.

A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5 and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the six month grace period that follows.

Patent	Title	Holder	Status	Fee due	Lapses if unpaid	Expires	Confidence
US 10,307,706	Sorbent Compositions for Use in a Wet Scrubber Unit Arq Solutions, LLC In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Sep 10, 2036 · High confidence	Arq Solutions, LLC	In force	Dec 4, 2026	Jun 4, 2027	Term ends Sep 10, 2036	High confidence
US 10,350,545	Low Pressure Drop Static Mixing System Arq Solutions (Es), Inc. In force Fee due Jan 16, 2027 Lapses if unpaid Jul 16, 2027 Term ends May 10, 2037 · High confidence	Arq Solutions (Es), Inc.	In force	Jan 16, 2027	Jul 16, 2027	Term ends May 10, 2037	High confidence
US 10,357,755	Methods for Solidification and Stabilization of Industrial Byproducts Arq Solutions (Es), Inc. In force Fee due Jan 23, 2027 Lapses if unpaid Jul 23, 2027 Term ends Mar 14, 2034 · High confidence	Arq Solutions (Es), Inc.	In force	Jan 23, 2027	Jul 23, 2027	Term ends Mar 14, 2034	High confidence
US 11,745,164	Methods for the Treatment of a Flue Gas Stream in a Flue Gas Train Including a Baghouse Arq Solutions, LLC In force Fee due Mar 5, 2027 Lapses if unpaid Sep 7, 2027 Term ends Dec 2, 2035 · High confidence	Arq Solutions, LLC	In force	Mar 5, 2027	Sep 7, 2027	Term ends Dec 2, 2035	High confidence
US 10,421,037	Methods for Treating a Flue Gas Stream Using a Wet Scrubber Unit Arq Solutions, LLC In force Fee due Mar 24, 2027 Lapses if unpaid Sep 24, 2027 Term ends Apr 25, 2035 · High confidence	Arq Solutions, LLC	In force	Mar 24, 2027	Sep 24, 2027	Term ends Apr 25, 2035	High confidence
US 10,427,096	Method and System for Controlling Mercury Emissions from Coal-Fired Thermal Processes Arq Solutions (Es), Inc. In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 Term ends Feb 4, 2031 · High confidence	Arq Solutions (Es), Inc.	In force	Apr 1, 2027	Oct 1, 2027	Term ends Feb 4, 2031	High confidence
US 9,149,759	Air Treatment Process for Dilute Phase Injection of Dry Alkaline Materials Arq Solutions (Es), Inc. In force Fee due Apr 6, 2027 Lapses if unpaid Oct 6, 2027 Term ends Mar 10, 2031 · High confidence	Arq Solutions (Es), Inc.	In force	Apr 6, 2027	Oct 6, 2027	Term ends Mar 10, 2031	High confidence
US 10,449,492	Catalytically Enhanced Compositions for Efficient Removal of Contaminants in Flue Gas Streams Arq Solutions, LLC In force Fee due Apr 22, 2027 Lapses if unpaid Oct 22, 2027 Term ends Jul 4, 2035 · High confidence	Arq Solutions, LLC	In force	Apr 22, 2027	Oct 22, 2027	Term ends Jul 4, 2035	High confidence
US 10,456,745	Methods for the Manufacture of a Sorbent Composition Having a Catalyst Component Arq Solutions, LLC In force Fee due Apr 29, 2027 Lapses if unpaid Oct 29, 2027 Term ends May 26, 2035 · High confidence	Arq Solutions, LLC	In force	Apr 29, 2027	Oct 29, 2027	Term ends May 26, 2035	High confidence
US 10,465,137	Process to Reduce Emissions of Nitrogen Oxides and Mercury from Coal-Fired Boilers Arq Solutions (Es), Inc. In force Fee due May 5, 2027 Lapses if unpaid Nov 5, 2027 Term ends May 14, 2032 · High confidence	Arq Solutions (Es), Inc.	In force	May 5, 2027	Nov 5, 2027	Term ends May 14, 2032	High confidence
5 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

10 of 15 patents shown. Soonest fee due date first, then patent number.

Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.

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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.