| CENTERFIRE ILLINOIS TOOL WORKS INC.
2278468 26 Jul 2023 | on 30 Aug 2023 | Class 007 Class 007 Machinery Products Welding tips; welding nozzles; welding diffusers. | | | CENTERFIRE GENERAL ELECTRIC COMPANY
1315156 01 Sep 2006 | on 21 Mar 2012 | Class 009 Class 009 Computer & Software Products & Electrical & Scientific Products Resistivity module which is an electronic tool used for accurate drilling of wells that can guide the drill head during drilling. | | | CENTERFIRE GENERAL ELECTRIC COMPANY
1191584 06 Oct 2003 | on 24 Apr 2008 | Class 009 Class 009 Computer & Software Products & Electrical & Scientific Products Resistivity module which is an electronic tool used for accurate drilling of wells that can guide the drill head during drilling | | | CENTERFIRE ELITE PRIME DOWNHOLE MANUFACTURING LLC
2007435 22 Jan 2020 | on 04 Jun 2024 | Class 009 Class 009 Computer & Software Products & Electrical & Scientific Products Downhole tool comprising of downhole sensors and measurement systems for distinguishing hydrocarbon zones while drilling oil and gas wells, and to establish invasion profiling of the zones | |