The Patent Finder

Professional Technical Services

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

Showing 1 to 7 of 7 · Back to Professional Technical Services

PatentTitleStatus Expires Confidence
US 9,347,965Autosampler with Enhanced Expansion Capability
Lapsed on the fee record
Ended May 24, 2024 · High confidence
Lapsed on the fee recordEnded May 24, 2024High confidence
US 8,092,744Analytical Chemical Sampling System with Bypass Mode
Lapsed on the fee record
Ended Jan 10, 2024 · High confidence
Lapsed on the fee recordEnded Jan 10, 2024High confidence
US 8,075,842Analytical Chemical Sampling System with Sparge Vessel
Lapsed on the fee record
Ended Dec 13, 2023 · High confidence
Lapsed on the fee recordEnded Dec 13, 2023High confidence
US 8,062,905Purge and trap concentrator with sparge vessel
Lapsed on the fee record
Ended Nov 22, 2023 · From the USPTO record
Lapsed on the fee recordEnded Nov 22, 2023From the USPTO record
US 7,951,609Purge and trap concentrator with sparge vessel
Lapsed on the fee record
Ended May 31, 2023 · From the USPTO record
Lapsed on the fee recordEnded May 31, 2023From the USPTO record
US 8,850,905Automated sampling of dissolved contaminants in water
Lapsed on the fee record
Ended Oct 7, 2022 · From the USPTO record
Lapsed on the fee recordEnded Oct 7, 2022From the USPTO record
US 7,803,635Purge and trap concentrator with sparge vessel
Lapsed on the fee record
Ended Sep 28, 2022 · From the USPTO record
Lapsed on the fee recordEnded Sep 28, 2022From 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