Maintenance fees coming due

Headway Technologies, Inc.

75 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 19, 2026. Unpaid by May 19, 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 9,034,149	Method for fabricating a high coercivity hard bias structure for magnetoresistive sensor Headway Technologies, Inc. In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 Term ends May 17, 2032 · High confidence	Headway Technologies, Inc.	In force	Nov 19, 2026	May 19, 2027	Term ends May 17, 2032	High confidence
US 9,034,662	MR Enhancing Layer (MREL) for Spintronic Devices Headway Technologies, Inc. In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 Term ends Apr 26, 2030 · High confidence	Headway Technologies, Inc.	In force	Nov 19, 2026	May 19, 2027	Term ends Apr 26, 2030	High confidence
US 9,040,178	TMR device with novel free layer structure Headway Technologies, Inc. In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Term ends Dec 25, 2031 · High confidence	Headway Technologies, Inc.	In force	Nov 26, 2026	May 26, 2027	Term ends Dec 25, 2031	High confidence
US 10,311,899	Write Head Designs with Sandwich Trailing Shield (STS) for High Data Rate Perpendicular Recording Headway Technologies, Inc. In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Nov 21, 2036 · High confidence	Headway Technologies, Inc.	In force	Dec 4, 2026	Jun 4, 2027	Term ends Nov 21, 2036	High confidence
US 10,311,900	Magnetic Core and Coil Design for Double Perpendicular Magnetic Recording (PMR) Writers Headway Technologies, Inc. In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Jan 19, 2038 · High confidence	Headway Technologies, Inc.	In force	Dec 4, 2026	Jun 4, 2027	Term ends Jan 19, 2038	High confidence
US 9,053,713	High Coercivity Magnetic Film for Use as a Hot Seed in a Magnetic Write Head and Method to Grow It Headway Technologies, Inc. In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Feb 11, 2033 · High confidence	Headway Technologies, Inc.	In force	Dec 9, 2026	Jun 9, 2027	Term ends Feb 11, 2033	High confidence
US 9,053,720	High Moment Wrap Shields for Magnetic Read Head to Improve Micro-Magnetic Read Width Headway Technologies, Inc. In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Jan 10, 2034 · High confidence	Headway Technologies, Inc.	In force	Dec 9, 2026	Jun 9, 2027	Term ends Jan 10, 2034	High confidence
US 10,319,398	Tapered Junction Shield for Self-Compensation of Asymmetry with Increasing Aspect Ratio for Tunneling Magneto-Resistance (TMR) Type Read Head Headway Technologies, Inc. In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Aug 25, 2037 · High confidence	Headway Technologies, Inc.	In force	Dec 11, 2026	Jun 11, 2027	Term ends Aug 25, 2037	High confidence
US 10,325,618	Perpendicular Magnetic Recording (PMR) Writer with One or More Spin Flipping Elements in the Gap Headway Technologies, Inc. In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jul 17, 2038 · High confidence	Headway Technologies, Inc.	In force	Dec 18, 2026	Jun 21, 2027	Term ends Jul 17, 2038	High confidence
US 11,683,994	Magnetic Element with Perpendicular Magnetic Anisotropy (PMA) and Improved Coercivity Field (Hc)/Switching Current Ratio Headway Technologies, Inc. In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jun 21, 2039 · High confidence	Headway Technologies, Inc.	In force	Dec 20, 2026	Jun 21, 2027	Term ends Jun 21, 2039	High confidence
65 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro

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