Resources Contact Us Home
Tiernan; John P.
Newnan, GA
No. of patents:

Patent Number Title Of Patent Date Issued
7487827 Propellant cartridge with restrictor plugs for fracturing wells February 10, 2009
An apparatus for fracturing a well has a propellant charge held by a carrier, and upper and lower restrictor plugs secured to the carrier above and below the propellant charge, respectively. The restrictor plugs allow a restricted flow of combustion gases generated by the propellant
7409911 Propellant for fracturing wells August 12, 2008
An apparatus for fracturing wells employs a propellant charge and an ignition cord wrapped around the outer surface of the propellant charge to rapidly ignite the outer surface of the propellant charge.
7073589 System for fracturing wells using supplemental longer-burning propellants July 11, 2006
A system for fracturing wells uses a primary propellant charge to initially produce pressures within the well in excess of the maximum fracture extension pressure of the surrounding formation, but below that which would cause damage to the well. A supplemental propellant charge burns

  Recently Added Patents
Method and an apparatus for processing an audio signal
Image forming apparatus having a primary transfer unit, a secondary transfer unit, and a direct transfer unit
Universal handle extension for unloading butterfly valve for tank trailer or other vehicle
Apparatus and method for categorizing services using canonical service descriptions
Random access point (RAP) formation using intra refreshing technique in video coding
Circuit design approximation
Systems and methods for universal enhanced log-in, identity document verification and dedicated survey participation
  Randomly Featured Patents
Test structures, systems, and methods for semiconductor devices
Video and/or audio signal receiving and recording arrangement
Spoon straw
Bicycle frame
Pinned-extrusion heat sink for electronic devices
Method of treating sickle cell anemia
Hippocampus-associated proteins, DNA sequences coding therefor and uses thereof
Method and apparatus for recording digital signal
System and method of producing construction specifications
Fluid flow measuring device and method of manufacturing thereof