1
Karl C Lippard: Handgun system. Martensen IP, Michael C Martensen, March 13, 2012: US08132352 (30 worldwide citation)

Multiple improvements dramatically increase the reliability and accuracy of a handgun. By combining a plurality of improvements, the accuracy and reliability of a M1911-A1 is dramatically increased. The improvements include a modified sighting system that enables the user to accurately adjust for va ...


2
Karl C Lippard: Interchangeable scope mount. Michael C Martensen, July 5, 2011: US07971384 (10 worldwide citation)

A system for interchangeably mounting sighting devices on a plurality of firearms which includes one or more ring assemblies and one or more mounting assemblies. A sighting device is coupled to a mounting assembly using a ring assembly forming a mounting system. The system can then be mounted to one ...


3
Karl C Lippard: Barrel link for a semi-automatic weapon. Karl C Lippard, Gregory & Martensen, Michael C Martensen, January 4, 2011: US07861640 (4 worldwide citation)

An improved barrel link for consistently and reliably placing a barrel of a semi-automatic pistol into battery is disclosed. One embodiment of the present invention extends the width of the barrel link beyond that of the receiving channel of the barrel lug legs so as to substantially equal the exter ...


4
Joe Bojalad, Karl C Lippard: Process for manufacturing double barrel shotgun barrels, and the resulting double barrels. William J Kubida, Michael C Martensen, Hogan & Hartson, May 4, 2010: US07707761 (3 worldwide citation)

A method for manufacturing double barrel shotgun barrels, including the steps of providing an elongated metal stock material having a first end and a second end, forming two index holes in both the first end and the second end of the material, forming a first and second bore hole through the materia ...


5
Karl C Lippard: Barrel link for a semiautomatic weapon. Karl Lippard, Michael C Martensen, William J Kubida, Hogan & Hartson, March 9, 2010: US07673553 (3 worldwide citation)

An improved barrel link for consistently and reliably placing a barrel of a semi-automatic pistol into battery is disclosed. One embodiment of the present invention extends the width of the barrel link beyond that of the receiving channel of the barrel lug legs so as to substantially equal the exter ...


6
Karl C Lippard: Unitary barrel, chamber and action for a firearm. Karl C Lippard, Martensen IP, September 9, 2014: US08826579 (1 worldwide citation)

A unitary barrel, chamber and bolt region for a firearm is manufactured from a single piece of metal stock so as to precisely and consistently meet headspace requirements. A single piece of metal stock having a bore centerline is successively reamed based on a common datum to achieve precise headspa ...


7
Karl C Lippard: Manufacturing process of a unitary barrel, chamber and action for a firearm. Martensen IP, Michael C Martensen, February 5, 2013: US08365647 (1 worldwide citation)

A unitary barrel, chamber and action assembly for a firearm is manufactured from a single piece of metal stock so as to precisely and consistently meet headspace requirements. A single piece of metal stock having a bore centerline is successively reamed based on a common datum to achieve precise hea ...


8
Joe Bojalad, Karl C Lippard: Process for manufacturing double barrel shotgun barrels, and the resulting double barrels. Michael C Martensen, Hogan & Hartson, June 10, 2008: US07383656 (1 worldwide citation)

A method for manufacturing double barrel shotgun barrels, including the steps of providing an elongated metal stock material having a first end and a second end, forming two index holes in both the first end and the second end of the material, forming a first and second bore hole through the materia ...


9
Joe Bojalad, Karl C Lippard: Process for manufacturing double barrel shotgun barrels, and the resulting double barrels. Karl C Lippard, August 2, 2007: US20070175078-A1

A method for manufacturing double barrel shotgun barrels, including the steps of providing an elongated metal stock material having a first end and a second end, forming two index holes in both the first end and the second end of the material, forming a first and second bore hole through the materia ...


10
Karl C Lippard: Barrel link for a semiautomatic weapon. Karl Lippard DBA Karl Lippard Designs, Hogan & Hartson, November 27, 2008: US20080289238-A1

An improved barrel link for consistently and reliably placing a barrel of a semi-automatic pistol into battery is disclosed. One embodiment of the present invention extends the width of the barrel link beyond that of the receiving channel of the barrel lug legs so as to substantially equal the exter ...