The Patent Finder

SP3H

Also on record
Records under this name other than the patents SP3H 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 5 of 5 · Back to SP3H

PatentTitleStatus Expires Confidence
US 7,676,316Methods for optimizing the operation parameters of a combustion engine
Term ended
Term ended Aug 1, 2026 · From the USPTO record
Term endedTerm ended Aug 1, 2026From the USPTO record
US 9,562,850Onboard device and method for analyzing fluid in a heat engine
Lapsed on the fee record
Ended Feb 7, 2025 · From the USPTO record
Lapsed on the fee recordEnded Feb 7, 2025From the USPTO record
US 9,562,851Onboard device and method for analyzing fluid in a heat engine
Lapsed on the fee record
Ended Feb 7, 2025 · From the USPTO record
Lapsed on the fee recordEnded Feb 7, 2025From the USPTO record
US 7,982,189Spectrometer for fluid analysis
Lapsed on the fee record
Ended Jul 19, 2019 · From the USPTO record
Lapsed on the fee recordEnded Jul 19, 2019From the USPTO record
US 8,990,029Device for the centralized management of measurements and data relating to the liquid and gas flows needed for the operation of a combustion engine
Lapsed on the fee record
Ended Mar 24, 2019 · From the USPTO record
Lapsed on the fee recordEnded Mar 24, 2019From the USPTO record
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited