Inventor

Christopher C. Langenfeld

Inventor

Nashua, NH, US

Overview

2000–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 120 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

F02Gprimary

F02GHot gas or combustion-product positive-displacement engine plants7%

Y02WClimate change mitigation technologies related to wastewater treatment or waste management5%

B01DSeparation4%

C02FTreatment of water, waste water, sewage, or sludge4%

B62KCycles4%

B60LPropulsion of electrically-propelled vehicles3%

F16HGearing3%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application3%

A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons2%

Y02TClimate change mitigation technologies related to transportation2%

PatentTitleYear

11,117,258Robotic surgery system, method, and apparatus2021 11,079,145Stirling cycle machine2021 11,026,816Prosthetic device2021 11,024,409Peristaltic pump2021 11,002,699Water vapor distillation apparatus, method and system2021 10,946,302Water vapor distillation apparatus, method and system2021 10,888,439System and apparatus for robotic device and methods of using thereof2021 10,857,293Apparatus for infusing fluid2020 10,782,217System and method for applying force to a device2020 10,759,676Water vapor distillation apparatus, method and system2020 10,753,353Peristaltic pump2020 10,744,421Water vending apparatus2020 10,699,597Modular electro-mechanical agent2020 10,646,355System and apparatus for robotic device and methods of using thereof2020 10,426,517Craniofacial external distraction apparatus2019 10,392,090Swimming propulsion device2019 10,345,208System and method for applying force to a device2019 10,316,834Peristaltic pump2019 10,299,941Arm prosthetic device2019 10,292,838Arm prosthetic device2019 10,288,057Peristaltic pump2019 10,202,970System, method, and apparatus for infusing fluid2019 10,202,971Peristaltic pump2019 10,201,435System and apparatus for robotic device and methods of using thereof2019 10,155,174Water vending apparatus2018 10,072,607Annular venturi burner for stirling engine2018 10,052,761Robotic surgery system, method, and apparatus2018 10,005,001Water vapor distillation apparatus, method and system2018 9,937,435Water vending apparatus2018 9,938,962Method for controlling a wind turbine2018 D0813376'Apparatus to control fluid flow through a tube'2018 9,844,447System and apparatus for robotic device and methods of using thereof2017 9,840,315'Swimming propulsion device'2017 9,828,940Stirling cycle machine2017 9,828,942Thermal energy recovery system2017 9,822,730'Floating rod seal for a stirling cycle machine'2017 9,823,024'Stirling cycle machine'2017 9,797,341'Linear cross-head bearing for stirling engine'2017 9,797,340'Stirling cycle machine'2017 D0799025'Apparatus to control fluid flow through a tube'2017 9,752,532'Stirling cycle machine'2017 9,730,731'Craniofacial external distraction apparatus'2017 9,677,555'System, method, and apparatus for infusing fluid'2017 9,675,756'Apparatus for infusing fluid'2017 9,610,518'Water vapor distillation apparatus, method and system'2017 9,604,858'Water vapor distillation apparatus, method and system'2017 9,593,809'Water vapor distillation apparatus, method and system'2017 9,534,561'Stirling cycle machine with airlock pressure regulator and burner controls'2017 9,488,158'Method for controlling a wind turbine'2016 9,470,209'Centrifugally driven aerodynamic rotor blade brake assembly'2016 9,441,575'Thermal energy recovery system'2016 9,393,131'Arm prosthetic device'2016 9,334,033'Swimming propulsion device'2016 9,309,104'Water vending apparatus'2016 9,308,467'Water vapor distillation apparatus, method and system'2016 D0752209'Apparatus to control fluid flow through a tube'2016 D0749206'Apparatus to control fluid flow through a tube'2016 9,151,243'Coolant penetrating cold-end pressure vessel'2015 9,151,646'System, method, and apparatus for monitoring, regulating, or controlling fluid flow'2015 9,114,028'Arm prosthetic device'2015 8,890,346'System and method for operating a wind turbine'2014 8,888,963'Water vending apparatus'2014 8,872,375'Wind turbine apparatus, systems and methods'2014 8,763,391'Stirling cycle machine'2014 8,714,925'Centrifugally driven aerodynamic rotor blade brake assembly'2014 8,690,617'Swimming propulsion device'2014 8,584,472'Water vapor distillation apparatus, method and system'2013 8,511,105'Water vending apparatus'2013 8,505,323'Water vapor distillation apparatus, method and system'2013 8,474,256'Stirling cycle machine'2013 8,449,624'Arm prosthetic device'2013 8,359,877'Water vending apparatus'2013 8,322,477'Motion control of a transporter'2012 8,186,462'Dynamically stable transporter controlled by lean'2012 8,181,461'Coolant penetrating cold-end pressure vessel'2012 8,069,676'Water vapor distillation apparatus, method and system'2011 8,006,511'Water vapor distillation apparatus, method and system'2011 7,988,508'Swimming propulsion device'2011 7,789,174'Dynamically stable transporter controlled by lean'2010 7,779,939'Guided control of a transporter'2010 D0619670'Stabilizer for a swimming propulsion device'2010 D0614254'Propulsor device'2010 7,654,084'Metering fuel pump'2010 7,654,074'Thermal improvements for an external combustion engine'2010 D0605722'Swimming propulsion device'2009 D0604789'Fuselage device'2009 7,592,900'Transporter motor alarm'2009 7,546,889'Guided control of a transporter'2009 7,469,760'Hybrid electric vehicles using a stirling engine'2008 7,325,399'Coolant penetrating cold-end pressure vessel'2008 7,310,945'Work-space pressure regulator'2007 7,308,787'Thermal improvements for an external combustion engine'2007 7,174,976'Dynamically stable transporter controlled by lean'2007 7,131,706'Mechanical improvements to a personal vehicle'2006 7,111,460'Metering fuel pump'2006 7,090,040'Motion control of a transporter'2006 7,007,470'Compression release valve'2006 6,971,235'Evaporative burner'2005 6,966,182'Stirling engine thermal system improvements'2005 6,862,883'Regenerator for a Stirling engine'2005 6,857,260'Thermal improvements for an external combustion engine'2005 6,715,845'Mechanical improvements to a personal vehicle'2004 6,708,481'Fuel injector for a liquid fuel burner'2004 6,705,081'System and method for sensor control of the fuel-air ratio in a burner'2004 6,694,731'Stirling engine thermal system improvements'2004 6,591,609'Regenerator for a Stirling Engine'2003 6,591,608'Folded guide link drive improvements'2003 6,547,026'Safety separation system'2003 6,543,215'Thermal improvements for an external combustion engine'2003 6,536,207'Auxiliary power unit'2003 6,508,319'Automobile ingress/egress system'2003 6,405,816'Mechanical improvements to a personal vehicle'2002 6,386,576'Cushion system for mobile subject'2002 6,381,958'Stirling engine thermal system improvements'2002 6,367,817'Personal mobility vehicles and methods'2002 6,302,230'Personal mobility vehicles and methods'2001 6,253,550'Folded guide link stirling engine'2001 6,247,310'System and method for control of fuel and air delivery in a burner of a thermal-cycle engine'2001 6,062,600'Anti-tipping mechanism'2000 6,062,023'Cantilevered crankshaft stirling cycle machine'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2021Patents assigned to DEKA PRODUCTS LP (86)· patent assignee history

2000–2021Patents assigned to NEW POWER CONCEPTS LLC (34)· patent assignee history

2000–2021Based in Nashua, NH, US· patent location history

2011–2017Patents assigned to LANGENFELD CHRISTOPHER C (22)· patent assignee history

2011–2017Patents assigned to KAMEN DEAN (15)· patent assignee history

2011–2017Patents assigned to SMITH III STANLEY B (15)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DEKA PRODUCTS LP	86	2000–2021
NEW POWER CONCEPTS LLC	34	2000–2021
LANGENFELD CHRISTOPHER Cself	22	2011–2017
KAMEN DEAN	15	2011–2017
SMITH III STANLEY B	15	2011–2017

Locations

Location	Patents	Span
Nashua, NH, US	120	2000–2021