Maintenance fees coming due

Keysight Technologies, Inc.

206 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 10,288,685	Multi-Bank Digital Stimulus Response in a Single Field Programmable Gate Array Keysight Technologies, Inc. In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 Term ends Jun 19, 2037 · High confidence	Keysight Technologies, Inc.	In force	Nov 14, 2026	May 14, 2027	Term ends Jun 19, 2037	High confidence
US 9,035,762	Method and System for Locating Signal Emitters Using Cross-Correlation of Received Signal Strengths Keysight Technologies, Inc. In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 Term ends Mar 10, 2033 · High confidence	Keysight Technologies, Inc.	In force	Nov 19, 2026	May 19, 2027	Term ends Mar 10, 2033	High confidence
US 11,656,331	System and Method of Emulating Echo Signals from Emulated Targets with Reduced Interference Keysight Technologies, Inc. In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 Term ends Nov 26, 2041 · High confidence	Keysight Technologies, Inc.	In force	Nov 23, 2026	May 24, 2027	Term ends Nov 26, 2041	High confidence
US 9,043,851	Methods, Systems, and Computer Readable Media for Measuring Multicast Latency Keysight Technologies Singapore (Sales) Pte. Ltd. In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Term ends Jul 22, 2032 · High confidence	Keysight Technologies Singapore (Sales) Pte. Ltd.	In force	Nov 26, 2026	May 26, 2027	Term ends Jul 22, 2032	High confidence
US 10,303,814	Simulating Intermods of High Carrier Count Signals Keysight Technologies, Inc. In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Feb 23, 2036 · High confidence	Keysight Technologies, Inc.	In force	Nov 28, 2026	May 28, 2027	Term ends Feb 23, 2036	High confidence
US 10,305,713	Trigger Information Exchange Between Wireless Systems Keysight Technologies Singapore (Sales) Pte. Ltd. In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Jun 11, 2036 · High confidence	Keysight Technologies Singapore (Sales) Pte. Ltd.	In force	Nov 28, 2026	May 28, 2027	Term ends Jun 11, 2036	High confidence
US 11,664,909	System and Method for Measuring Phase Noise Keysight Technologies, Inc. In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 Term ends Jul 24, 2041 · High confidence	Keysight Technologies, Inc.	In force	Nov 30, 2026	Jun 1, 2027	Term ends Jul 24, 2041	High confidence
US 9,049,091	System and Method for In-Phase/Quadrature-Phase (I/Q) Time Delay Measurement and Compensation Keysight Technologies, Inc. In force Fee due Dec 2, 2026 Lapses if unpaid Jun 2, 2027 Term ends Mar 26, 2034 · High confidence	Keysight Technologies, Inc.	In force	Dec 2, 2026	Jun 2, 2027	Term ends Mar 26, 2034	High confidence
US 10,313,031	Antenna Arrays for Testing Wireless Devices Keysight Technologies Singapore (Sales) Pte. Ltd. In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Feb 28, 2037 · High confidence	Keysight Technologies Singapore (Sales) Pte. Ltd.	In force	Dec 4, 2026	Jun 4, 2027	Term ends Feb 28, 2037	High confidence
US 10,313,493	Methods, Systems and Computer Readable Media for Network Tapping and Packet Brokering in Wireless Networks Keysight Technologies Singapore (Sales) Pte. Ltd. In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends May 21, 2037 · High confidence	Keysight Technologies Singapore (Sales) Pte. Ltd.	In force	Dec 4, 2026	Jun 4, 2027	Term ends May 21, 2037	High confidence
196 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 206 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.