The Patent Finder

Effective Exploration LLC

Also on record
Records under this name other than patents Effective Exploration LLC holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

Back to Effective Exploration LLC

PatentTitleStatus Expires Confidence
US 6,644,422Pantograph Underreamer
Term ended
Ended no later than Aug 13, 2021 · Medium confidence
Term endedEnded no later than Aug 13, 2021Medium confidence
US 6,662,870Method and System for Accessing a Subterranean Zone from a Limited Surface Area
Term ended
Ended no later than Mar 4, 2021 · Medium confidence
Term endedEnded no later than Mar 4, 2021Medium confidence
US 6,425,448Method and System for Accessing Subterranean Zones from a Limited Surface Area
Term ended
Term ended Jan 30, 2021 · High confidence
Term endedTerm ended Jan 30, 2021High confidence
US 6,575,235Subterranean Drainage Pattern
Term ended
Term ended Jan 30, 2021 · High confidence
Term endedTerm ended Jan 30, 2021High confidence
US 7,299,864Adjustable Window Liner
Lapsed on the fee record
Ended Nov 27, 2019 · High confidence
Lapsed on the fee recordEnded Nov 27, 2019High confidence
US 8,033,337Plugging a Mined-Through Well
Lapsed on the fee record
Ended Oct 11, 2019 · High confidence
Lapsed on the fee recordEnded Oct 11, 2019High confidence
US 7,264,048Non-Cylindrical Cavity for Intersecting Well Bores
Lapsed on the fee record
Ended Sep 4, 2019 · High confidence
Lapsed on the fee recordEnded Sep 4, 2019High confidence
US 7,222,670System and Method for Multiple Wells from a Common Surface Location
Lapsed on the fee record
Ended May 29, 2019 · High confidence
Lapsed on the fee recordEnded May 29, 2019High confidence
US 6,598,686Method and System for Enhanced Access to a Subterranean Zone
Term ended
Ended no later than Jan 5, 2019 · Low confidence
Term endedEnded no later than Jan 5, 2019Low confidence
US 6,280,000Method for production of gas from a coal seam using intersecting well bores
Term ended
Term ended Nov 20, 2018 · From the USPTO record
Term endedTerm ended Nov 20, 2018From the USPTO record
10 of 88 patents shown.
Pro members see all 88.
Pro members: see all 88 patents
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited