Maintenance fees coming due

Tronox LLC

9 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Feb 6, 2027. Unpaid by Aug 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 10,370,540	Inorganic Pigments Surface Treated with Polyol Esters Tronox LLC In force Fee due Feb 6, 2027 Lapses if unpaid Aug 6, 2027 Term ends May 20, 2036 · High confidence	Tronox LLC	In force	Feb 6, 2027	Aug 6, 2027	Term ends May 20, 2036	High confidence
US 11,718,538	Centrifugal Aluminum Chloride Generator Tronox LLC In force Fee due Feb 8, 2027 Lapses if unpaid Aug 9, 2027 Term ends Apr 22, 2040 · High confidence	Tronox LLC	In force	Feb 8, 2027	Aug 9, 2027	Term ends Apr 22, 2040	High confidence
US 9,108,185	Catalyst Support Materials, Catalysts, Methods of Making Them and Uses Thereof Tronox LLC In force Fee due Feb 18, 2027 Lapses if unpaid Aug 18, 2027 Term ends Aug 23, 2033 · High confidence	Tronox LLC	In force	Feb 18, 2027	Aug 18, 2027	Term ends Aug 23, 2033	High confidence
US 10,407,544	Titanium Dioxide Pigment and Manufacturing Method Tronox LLC In force Fee due Mar 10, 2027 Lapses if unpaid Sep 10, 2027 Term ends Feb 20, 2034 · High confidence	Tronox LLC	In force	Mar 10, 2027	Sep 10, 2027	Term ends Feb 20, 2034	High confidence
US 9,150,440	Method for Purification of Spent Sulfuric Acid from Titanium Dioxide Rutile Industry Tronox LLC In force Fee due Apr 6, 2027 Lapses if unpaid Oct 6, 2027 Term ends Sep 10, 2033 · High confidence	Tronox LLC	In force	Apr 6, 2027	Oct 6, 2027	Term ends Sep 10, 2033	High confidence
US 9,156,716	Method for Purification of Spent Sulfuric Acid from Titanium Dioxide Rutile Industry Tronox LLC In force Fee due Apr 13, 2027 Lapses if unpaid Oct 13, 2027 Term ends May 10, 2032 · High confidence	Tronox LLC	In force	Apr 13, 2027	Oct 13, 2027	Term ends May 10, 2032	High confidence
US 9,260,318	Mesoporous Titanium Dioxide Nanoparticles and Process for Their Production Tronox LLC In force Fee due Aug 16, 2027 Lapses if unpaid Feb 16, 2028 Term ends Nov 16, 2031 · High confidence	Tronox LLC	In force	Aug 16, 2027	Feb 16, 2028	Term ends Nov 16, 2031	High confidence
US 9,315,615	Titanium Dioxide Pigment and Manufacturing Method Tronox LLC In force Fee due Oct 19, 2027 Lapses if unpaid Apr 19, 2028 Term ends Feb 20, 2034 · High confidence	Tronox LLC	In force	Oct 19, 2027	Apr 19, 2028	Term ends Feb 20, 2034	High confidence
US 10,639,614	NOx Reducing Coatings and Methods for Reducing NOx Therewith Tronox LLC In force Fee due Nov 5, 2027 Lapses if unpaid May 5, 2028 Term ends Oct 21, 2036 · High confidence	Tronox LLC	In force	Nov 5, 2027	May 5, 2028	Term ends Oct 21, 2036	High confidence

9 of 9 patents shown. Soonest fee due date first, then patent number.

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