Maintenance fees coming due

UOP LLC

409 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 21, 2026. Unpaid by May 21, 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 10,294,263	Transition Metal Molybdotungsten Oxy-Hydroxide UOP LLC In force Fee due Nov 21, 2026 Lapses if unpaid May 21, 2027 Term ends Dec 13, 2036 · High confidence	UOP LLC	In force	Nov 21, 2026	May 21, 2027	Term ends Dec 13, 2036	High confidence
US 9,039,790	Hydroprocessing of Fats, Oils, and Waxes to Produce Low Carbon Footprint Distillate Fuels UOP LLC In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Term ends Nov 14, 2031 · High confidence	UOP LLC	In force	Nov 26, 2026	May 26, 2027	Term ends Nov 14, 2031	High confidence
US 9,040,763	Method for Quenching Paraffin Dehydrogenation Reaction in Counter-Current Reactor UOP LLC In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Term ends Oct 14, 2032 · High confidence	UOP LLC	In force	Nov 26, 2026	May 26, 2027	Term ends Oct 14, 2032	High confidence
US 9,040,765	Methods and Apparatuses for Isomerization of Paraffins UOP LLC In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Ends no later than Dec 3, 2032 · Medium confidence	UOP LLC	In force	Nov 26, 2026	May 26, 2027	Ends no later than Dec 3, 2032	Medium confidence
US 10,301,551	Modular Crude Refining Process UOP LLC In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Jul 9, 2037 · High confidence	UOP LLC	In force	Nov 28, 2026	May 28, 2027	Term ends Jul 9, 2037	High confidence
US 10,301,558	Integrated Process for Production of Gasoline UOP LLC In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Jul 30, 2038 · High confidence	UOP LLC	In force	Nov 28, 2026	May 28, 2027	Term ends Jul 30, 2038	High confidence
US 10,301,560	Process and Apparatus for Hydrocracking a Hydrocarbon Stream in Two Stages with Aromatic Saturation UOP LLC In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends May 18, 2037 · High confidence	UOP LLC	In force	Nov 28, 2026	May 28, 2027	Term ends May 18, 2037	High confidence
US 11,661,385	Process for Increasing the Concentration of Normal Hydrocarbons in a Light Naphtha Stream UOP LLC In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 Term ends Mar 1, 2041 · High confidence	UOP LLC	In force	Nov 30, 2026	Jun 1, 2027	Term ends Mar 1, 2041	High confidence
US 11,661,555	Process and Apparatus for Introducing Catalyst Precursor into Slurry Hydrocracking Reactor UOP LLC In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 Term ends Oct 12, 2041 · High confidence	UOP LLC	In force	Nov 30, 2026	Jun 1, 2027	Term ends Oct 12, 2041	High confidence
US 11,661,558	Apparatus and Process for Heating Hydroisomerization Feed UOP LLC In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 Term ends Dec 29, 2040 · High confidence	UOP LLC	In force	Nov 30, 2026	Jun 1, 2027	Term ends Dec 29, 2040	High confidence
399 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 409 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.