--- title: USPTO Confirms Validity of ECS Patent description: ECS Patent technology protects dry pipe sprinkler systems against corrosion. Petitioners South-Tek Systems, LLC and Potter Electric Signal Co. fail to prove image: https://www.ecscorrosion.com/hubfs/ECS-patents-1.jpg --- [![Engineered Corrosion Solutions logo](https://www.ecscorrosion.com/hs-fs/hubfs/Images/Logos/ECS_CorporateLogo_NOTAG_WHITE.png?width=311&name=ECS_CorporateLogo_NOTAG_WHITE.png)](https://www.ecscorrosion.com) [![Engineered Corrosion Solutions logo](https://www.ecscorrosion.com/hs-fs/hubfs/PRI_Programs_Registrar_Certified_ISO9001_WH.png?width=311&name=PRI_Programs_Registrar_Certified_ISO9001_WH.png)](https://www.ecscorrosion.com/hubfs/PRI_Programs_Registrar_Certified_ISO9001_WH.pdf) # USPTO Confirms Validity of ECS Patent Posted by [Experts in Nitrogen Generators and Automatic Air Vents](https://www.ecscorrosion.com/blog/author/experts-in-nitrogen-generators-and-automatic-air-vents) on May 22, 2017 11:18:30 AM **ST. LOUIS, MO  May 22, 2017** - On May 10, 2017, the U.S. Patent and Trademark Office (USPTO) confirmed the validity of **[U.S. Patent 9,144,700](https://patents.google.com/patent/US9144700)** entitled “Fire Protection Systems Having Reduced Corrosion” directed to the [Dry Pipe Nitrogen Inerting technology of Engineered Corrosion Solutions, LLC](https://www.ecscorrosion.com/nitrogen-generators-for-dry-sprinkler-systems). In May 2016, the USPTO agreed to review whether U.S. Patent 9,144,700 is invalid due to obviousness, as asserted by Petitioners South-Tek Systems, LLC and Potter Electric Signal Co., LLC. The awarded claims of U.S. Patent 9,144,700 are directed to a dry pipe fire sprinkler system having a nitrogen generator for supplying pressure maintenance gas and a vent to eliminate oxygen and reduce corrosion. “We are very pleased with the outcome of the IPR review,” said Jeff Kochelek, CEO of Engineered Corrosion Solutions. “In finding that Petitioners failed to establish any claims of the patent are unpatentable for obviousness, the USPTO’s decision validates and confirms the strength and significant value of ECS’s patent.”  **[![New call-to-action](https://no-cache.hubspot.com/cta/default/4773030/3682df14-dfd8-4a82-9f7e-d12a318ba600.png)](https://cta-redirect.hubspot.com/cta/redirect/4773030/3682df14-dfd8-4a82-9f7e-d12a318ba600)** Tags: [Nitrogen generators](https://www.ecscorrosion.com/blog/tag/nitrogen-generators), [dry or pre-action](https://www.ecscorrosion.com/blog/tag/dry-or-pre-action) ![Experts in Nitrogen Generators and Automatic Air Vents](https://www.ecscorrosion.com/hubfs/Images/ECS%20Headshots/Andrew%20Loeffelman.jpg) ### Written by [Experts in Nitrogen Generators and Automatic Air Vents](https://www.ecscorrosion.com/blog/author/experts-in-nitrogen-generators-and-automatic-air-vents) # Sprinkler Corrosion and Fire Protection ### Upcoming Events ECS University - [Register Now](https://www.ecscorrosion.com/ecs-university-register) ### Search ### Featured Posts #### [Fire Suppression & Corrosion Control in a Mission Critical Data Center](https://www.ecscorrosion.com/blog/fire-suppression-corrosion-control-mission-critical-data-center) [Jeff Kochelek](https://www.ecscorrosion.com/blog/author/jeff-kochelek) 0 Comments #### [What are the Main Causes of Corrosion in Fire Sprinkler Systems?](https://www.ecscorrosion.com/blog/main-causes-of-corrosion-in-fire-sprinkler-systems) [Lucas Kirn, P.E.](https://www.ecscorrosion.com/blog/author/lucas-kirn) 0 Comments ### Blog Tags ### Posts by Tag - [Nitrogen generators (23)](https://www.ecscorrosion.com/blog/tag/nitrogen-generators) - [Corrosion Management Technology (21)](https://www.ecscorrosion.com/blog/tag/corrosion-management-technology) - [Corrosion Monitoring (16)](https://www.ecscorrosion.com/blog/tag/corrosion-monitoring) - [Dry Pipe Sprinkler Systems (13)](https://www.ecscorrosion.com/blog/tag/dry-pipe-sprinkler-systems) - [Sprinkler System Parts & Maintenance (13)](https://www.ecscorrosion.com/blog/tag/sprinkler-system-parts-maintenance) - [Corrosion Assessment (11)](https://www.ecscorrosion.com/blog/tag/corrosion-assessment) - [Corrosion Mitigation (11)](https://www.ecscorrosion.com/blog/tag/corrosion-mitigation) - [Wet Pipe Sprinkler Systems (11)](https://www.ecscorrosion.com/blog/tag/wet-pipe-sprinkler-systems) - [air vent (10)](https://www.ecscorrosion.com/blog/tag/air-vent) - [NFPA 13 (9)](https://www.ecscorrosion.com/blog/tag/nfpa-13) ## Elevate Your Corrosion Expertise Get the latest fire protection research, compliance guides, and technical resources delivered to your inbox from the leaders in nitrogen inerting technology. 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[Intellectual Property](https://www.ecscorrosion.com/intellectual-property/) | [Privacy Policy/Terms of Use](https://www.ecscorrosion.com/privacy-policy/) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Experts in Nitrogen Generators and Automatic Air Vents", "url" : "https://www.ecscorrosion.com/blog/author/experts-in-nitrogen-generators-and-automatic-air-vents" }, "dateModified" : "2020-09-14T19:43:27.749Z", "datePublished" : "2017-05-22T16:18:30.000Z", "headline" : "USPTO Confirms Validity of ECS Patent", "image" : [ "https://www.ecscorrosion.com/hubfs/ECS-patents-1.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.ecscorrosion.com/blog/uspto-confirms-ecs-patent-validity", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.ecscorrosion.com/hubfs/Images/Logos/ECS_CorporateLogo_NOTAG.png" }, "name" : "Engineered Corrosion Solutions" } } ``` ```json // ```