Maintenance fees coming due

BASF SE

746 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 14, 2026. Unpaid by May 14, 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 10,286,390	Method for Preparation of a Group 4 Metal Silicate and Use Thereof BASF Corporation In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 Term ends Apr 16, 2034 · High confidence	BASF Corporation	In force	Nov 14, 2026	May 14, 2027	Term ends Apr 16, 2034	High confidence
US 10,287,415	Plasticizer Composition Which Comprises Cycloalkyl Esters of Saturated Dicarboxylic Acids and Terephthalic Esters BASF SE In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 Term ends Oct 8, 2035 · High confidence	BASF SE	In force	Nov 14, 2026	May 14, 2027	Term ends Oct 8, 2035	High confidence
US 10,287,417	Plasticizer Composition Containing Polymeric Dicarboxylic Acid Esters and Terephthalic Acid Dialkyl Esters BASF SE In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 Term ends Jan 29, 2036 · High confidence	BASF SE	In force	Nov 14, 2026	May 14, 2027	Term ends Jan 29, 2036	High confidence
US 10,287,558	Microorganisms for Succinic Acid Production BASF SE In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 Term ends Feb 2, 2035 · High confidence	BASF SE	In force	Nov 14, 2026	May 14, 2027	Term ends Feb 2, 2035	High confidence
US 10,287,571	Genetically Modified Microorganism for Improved Production of Fine Chemicals on Sucrose BASF SE In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 Term ends May 7, 2035 · High confidence	BASF SE	In force	Nov 14, 2026	May 14, 2027	Term ends May 7, 2035	High confidence
US 11,649,197	Method for Purifying Isobutene from a C4 Stream and Process System Therefor Omv Downstream GmbH and BASF SE In force Fee due Nov 16, 2026 Lapses if unpaid May 17, 2027 Term ends Aug 2, 2039 · High confidence	Omv Downstream GmbH and BASF SE	In force	Nov 16, 2026	May 17, 2027	Term ends Aug 2, 2039	High confidence
US 11,649,396	Associative Copolymers with Hydrophobic Quaternized (METH)ACRYLAMIDE and (METH)ACRYLIC Acid Derivatives BASF SE In force Fee due Nov 16, 2026 Lapses if unpaid May 17, 2027 Term ends Jan 9, 2040 · High confidence	BASF SE	In force	Nov 16, 2026	May 17, 2027	Term ends Jan 9, 2040	High confidence
US 9,034,209	Corrosion Protection Formulation for Protection Against Zinc and Cadmium Corrosion BASF SE In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 Term ends Aug 19, 2033 · High confidence	BASF SE	In force	Nov 19, 2026	May 19, 2027	Term ends Aug 19, 2033	High confidence
US 9,034,287	Catalyst Compositions, Articles, Methods And Systems BASF Mobile Emissions Catalysts LLC In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 Term ends Mar 11, 2034 · High confidence	BASF Mobile Emissions Catalysts LLC	In force	Nov 19, 2026	May 19, 2027	Term ends Mar 11, 2034	High confidence
US 9,034,444	Paper and Cardboard Packaging with Barrier Coating of a Polymer Mixture BASF SE In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 Term ends May 30, 2032 · High confidence	BASF SE	In force	Nov 19, 2026	May 19, 2027	Term ends May 30, 2032	High confidence
736 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 746 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.