Maintenance fees coming due

Zymeflow, Inc.

7 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Jan 11, 2027. Unpaid by Jul 12, 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 11,697,788	Solvent Composition and Process for Removal of Asphalt and Other Contaminant Materials Zymeflow, Inc. In force Fee due Jan 11, 2027 Lapses if unpaid Jul 12, 2027 Term ends Dec 23, 2034 · High confidence	Zymeflow, Inc.	In force	Jan 11, 2027	Jul 12, 2027	Term ends Dec 23, 2034	High confidence
US 11,753,320	Process for Decontamination of Hazardous Sulfur Compounds in Sour Water Tanks Zymeflow, Inc. In force Fee due Mar 12, 2027 Lapses if unpaid Sep 13, 2027 Term ends Sep 8, 2032 · Medium confidence	Zymeflow, Inc.	In force	Mar 12, 2027	Sep 13, 2027	Term ends Sep 8, 2032	Medium confidence
US 11,786,893	Solvent System for Cleaning Fixed Bed Reactor Catalyst in Situ Zymeflow, Inc. In force Fee due Apr 17, 2027 Lapses if unpaid Oct 18, 2027 Term ends Oct 9, 2041 · High confidence	Zymeflow, Inc.	In force	Apr 17, 2027	Oct 18, 2027	Term ends Oct 9, 2041	High confidence
US 11,850,551	Decontamination of Sulfur Contaminants from a Vessel Zymeflow, Inc. In force Fee due Jun 26, 2027 Lapses if unpaid Dec 27, 2027 Term ends Apr 5, 2036 · High confidence	Zymeflow, Inc.	In force	Jun 26, 2027	Dec 27, 2027	Term ends Apr 5, 2036	High confidence
US 10,526,527	Process for Removal of Hydrogen Sulfide in Downhole Oilfield Applications Zymeflow, Inc. In force Fee due Jul 7, 2027 Lapses if unpaid Jan 7, 2028 Term ends Feb 21, 2032 · Medium confidence	Zymeflow, Inc.	In force	Jul 7, 2027	Jan 7, 2028	Term ends Feb 21, 2032	Medium confidence
US 10,583,392	Decontamination of Sulfur Contaminants from a Vessel Zymeflow, Inc. In force Fee due Sep 10, 2027 Lapses if unpaid Mar 10, 2028 Term ends Sep 21, 2035 · High confidence	Zymeflow, Inc.	In force	Sep 10, 2027	Mar 10, 2028	Term ends Sep 21, 2035	High confidence
US 11,946,021	Solvent Composition and Process for Removal of Asphalt and Other Contaminant Materials Zymeflow, Inc. In force Fee due Oct 2, 2027 Lapses if unpaid Apr 3, 2028 Term ends Dec 23, 2034 · High confidence	Zymeflow, Inc.	In force	Oct 2, 2027	Apr 3, 2028	Term ends Dec 23, 2034	High confidence

7 of 7 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.