Gutmark; Ephraim J.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Gutmark; Ephraim J..The latest application filed is for "rotating detonation engines and related devices and methods".

Company Profile

1.5.7

Gutmark; Ephraim J. - Cincinnati OH

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Rotating detonation engines and related devices and methods App 20200063968 - Gutmark; Ephraim J. ; et al.	2020-02-27
Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiency Grant 8,387,724 - Gutmark , et al. March 5, 2	2013-03-05
Rotary Drill Bit with Nozzles Designed to Enhance Hydraulic Performance and Drilling Fluid Efficiency App 20120043137 - Gutmark; Ephraim J. ; et al.	2012-02-23
Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiency Grant 8,047,308 - Gutmark , et al. November 1, 2	2011-11-01
Rotary Drill Bit With Nozzles Designed To Enhance Hydraulic Performance And Drilling Fluid Efficiency App 20100314175 - Gutmark; Ephraim J. ; et al.	2010-12-16
Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiency Grant 7,802,640 - Gutmark , et al. September 28, 2	2010-09-28
Performance improvements for pulse detonation engines App 20090320446 - Gutmark; Ephraim J. ; et al.	2009-12-31
Rotary drill bit with nozzles designed to enhance hydraulic performance and drilling fluid efficiency App 20070163811 - Gutmark; Ephraim J. ; et al.	2007-07-19
Method and device for the control of thermoacoustic instabilities or oscillations in a combustion system App 20030211432 - Gutmark, Ephraim J. ; et al.	2003-11-13
Compact dual cyclone combustor Grant 6,601,526 - Gutmark , et al. August 5, 2	2003-08-05
Compact Dual Cyclone Combustor App 20020092449 - Gutmark, Ephraim J. ; et al.	2002-07-18

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