Maintenance fees coming due

Aspen Aerogels, Inc.

24 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Jan 4, 2027. Unpaid by Jul 6, 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 11,692,074	Sulfur-Linked Hybrid Gel Compositions and Aerogels Thereof Aspen Aerogels, Inc. In force Fee due Jan 4, 2027 Lapses if unpaid Jul 6, 2027 Term ends Feb 17, 2032 · High confidence	Aspen Aerogels, Inc.	In force	Jan 4, 2027	Jul 6, 2027	Term ends Feb 17, 2032	High confidence
US 11,702,346	Aerogel-Based Components and Systems for Electric Vehicle Thermal Management Aspen Aerogels, Inc. In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 Ends no later than Dec 13, 2040 · Medium confidence	Aspen Aerogels, Inc.	In force	Jan 18, 2027	Jul 19, 2027	Ends no later than Dec 13, 2040	Medium confidence
US 9,085,893	Organically Modified Hybrid Aerogels Aspen Aerogels, Inc. In force Fee due Jan 21, 2027 Lapses if unpaid Jul 21, 2027 Term ends Nov 18, 2031 · High confidence	Aspen Aerogels, Inc.	In force	Jan 21, 2027	Jul 21, 2027	Term ends Nov 18, 2031	High confidence
US 11,731,909	Solvent Management Methods for Gel Production Aspen Aerogels, Inc. In force Fee due Feb 22, 2027 Lapses if unpaid Aug 23, 2027 Term ends Jan 5, 2028 · Medium confidence	Aspen Aerogels, Inc.	In force	Feb 22, 2027	Aug 23, 2027	Term ends Jan 5, 2028	Medium confidence
US 9,133,280	Sulfur-Containing Organic-Inorganic Hybrid Gel Compositions and Aerogels Aspen Aerogels, Inc. In force Fee due Mar 15, 2027 Lapses if unpaid Sep 15, 2027 Term ends Feb 17, 2032 · High confidence	Aspen Aerogels, Inc.	In force	Mar 15, 2027	Sep 15, 2027	Term ends Feb 17, 2032	High confidence
US 11,760,837	Aerogel Compositions and Manufacturing Thereof Aspen Aerogels. Inc. In force Fee due Mar 19, 2027 Lapses if unpaid Sep 20, 2027 Term ends Mar 14, 2034 · High confidence	Aspen Aerogels. Inc.	In force	Mar 19, 2027	Sep 20, 2027	Term ends Mar 14, 2034	High confidence
US 11,767,671	Insulating Composite Materials Comprising an Inorganic Aerogel and a Melamine Foam Aspen Aerogels, Inc. In force Fee due Mar 26, 2027 Lapses if unpaid Sep 27, 2027 Term ends Oct 11, 2034 · High confidence	Aspen Aerogels, Inc.	In force	Mar 26, 2027	Sep 27, 2027	Term ends Oct 11, 2034	High confidence
US 11,807,734	Heat Resistant Aerogel Materials Aspen Aerogels, Inc. In force Fee due May 7, 2027 Lapses if unpaid Nov 8, 2027 Term ends Oct 2, 2035 · High confidence	Aspen Aerogels, Inc.	In force	May 7, 2027	Nov 8, 2027	Term ends Oct 2, 2035	High confidence
US 11,807,736	Heat Resistant Aerogel Materials Aspen Aerogels, Inc. In force Fee due May 7, 2027 Lapses if unpaid Nov 8, 2027 Ends no later than Oct 2, 2035 · Medium confidence	Aspen Aerogels, Inc.	In force	May 7, 2027	Nov 8, 2027	Ends no later than Oct 2, 2035	Medium confidence
US 11,808,032	Composite Insulation Including an Inorganic Aerogel and a Melamine Foam Aspen Aerogels, Inc. In force Fee due May 7, 2027 Lapses if unpaid Nov 8, 2027 Term ends Jun 13, 2034 · High confidence	Aspen Aerogels, Inc.	In force	May 7, 2027	Nov 8, 2027	Term ends Jun 13, 2034	High confidence
14 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 24 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.

Upgrade to Pro

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