Active Spectrum, Inc.

Also on record

Records under this name other than the patents Active Spectrum, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 3 patents it holds.

Showing 1 to 6 of 6 · Back to Active Spectrum, Inc.

Patent	Title	Status	Expires	Confidence
US 8,829,904	Method of and Apparatus for In-Situ Measurement of Degradation of Automotive Fluids and the Like by Micro-Electron Spin Resonance (ESR) Spectrometry Lapsed on the fee record Ended Sep 9, 2026 · Medium confidence	Lapsed on the fee record	Ended Sep 9, 2026	Medium confidence
US 8,648,596	Method of and apparatus for analysis of the composition of a sample by electron spin resonance (ESR) spectrometry employing carrier suppression Lapsed on the fee record Ended Feb 11, 2026 · From the USPTO record	Lapsed on the fee record	Ended Feb 11, 2026	From the USPTO record
US 9,546,970	Method of and apparatus for in-situ measurement of soot by electron spin resonance (ESR) spectrometry Lapsed on the fee record Ended Jan 17, 2025 · From the USPTO record	Lapsed on the fee record	Ended Jan 17, 2025	From the USPTO record
US 8,212,563	Method and apparatus for in-situ measurement of soot by electron spin resonance (ESR) spectrometry Lapsed on the fee record Ended Jul 3, 2024 · From the USPTO record	Lapsed on the fee record	Ended Jul 3, 2024	From the USPTO record
US 8,125,224	Method of and Apparatus for In-Situ Measurement of Degradation of Automotive Fluids and the Like by Micro-Electron Spin Resonance (ESR) Spectrometry Lapsed on the fee record Ended Feb 28, 2024 · High confidence	Lapsed on the fee record	Ended Feb 28, 2024	High confidence
US 9,103,261	Device and method for adjusting dosage of fuel additive based on in-situ measurement of additive and containment concentration Lapsed on the fee record Ended Aug 11, 2023 · From the USPTO record	Lapsed on the fee record	Ended Aug 11, 2023	From the USPTO record