Patents by Inventor Kory T. Angstadt
Kory T. Angstadt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10480914Abstract: Herein we describe embodiments of shotgun shells, methods for loading such shotgun shells, and methods for using them. In some embodiments, the shotgun shells utilize a multi-component wad system with a biodegradable powder wad that stays intact through the firing process, and a separate and chemically distinct biodegradable shot wad that breaks apart within one meter after being shot out of the barrel of a shotgun. A clean release of the shot can be obtained, providing both high performance and biodegradability. The biodegradable shot wad can be a biodegradable polyester.Type: GrantFiled: October 18, 2018Date of Patent: November 19, 2019Assignee: College of William & MaryInventors: Kirk J. Havens, David M. Stanhope, Kory T. Angstadt, Jason P. McDevitt
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Patent number: 10393486Abstract: Herein we describe embodiments of a biodegradable wad having a gas sealing function, as well as methods for their use. In some embodiments, the biodegradable wad comprises at least 50% by weight of a poly(butylene succinate co-adipate) polymer. In some embodiments, the biodegradable wad comprises at least two biodegradable polymers, wherein a first biodegradable polymer comprises a polybutylene succinate adipate polymer and a second biodegradable polymer comprises a polyhydroxyalkanoate polymer. Plastic debris has a negative economic and ecological impact, and thus it is advantageous to use implements that will degrade into environmentally benign compounds. Incorporating a biodegradable wad into shotgun shells provides an effective, economical solution, provided cost is acceptable and performance is not compromised. Suitable shotgun shells utilizing biodegradable shotgun wads and methods are described herein.Type: GrantFiled: March 20, 2018Date of Patent: August 27, 2019Assignee: College of William & MaryInventors: Kirk J. Havens, David M. Stanhope, Kory T. Angstadt, Jason P. McDevitt
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Publication number: 20190093998Abstract: Herein we describe embodiments of shotgun shells, methods for loading such shotgun shells, and methods for using them. In some embodiments, the shotgun shells utilize a multi-component wad system with a biodegradable powder wad that stays intact through the firing process, and a separate and chemically distinct biodegradable shot wad that breaks apart within one meter after being shot out of the barrel of a shotgun. A clean release of the shot can be obtained, providing both high performance and biodegradability. The biodegradable shot wad can be a biodegradable polyester.Type: ApplicationFiled: October 18, 2018Publication date: March 28, 2019Inventors: Kirk J. Havens, David M. Stanhope, Kory T. Angstadt, Jason P. McDevitt, Jay Menefee, David Daughtry
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Patent number: 10139206Abstract: Herein we describe embodiments of shotgun shells, methods for loading such shotgun shells, and methods for using them. In some embodiments, the shotgun shells utilize a multi-component wad system with a biodegradable powder wad that stays intact through the firing process, and a separate and chemically distinct biodegradable shot wad that breaks apart within one meter after being shot out of the barrel of a shotgun. A clean release of the shot can be obtained, providing both high performance and biodegradability. The biodegradable shot wad can be a biodegradable polyester.Type: GrantFiled: March 20, 2018Date of Patent: November 27, 2018Assignee: College of William & MaryInventors: Kirk J. Havens, David M. Stanhope, Kory T. Angstadt, Jason P. McDevitt, Jay Menefee, David Daughtry
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Publication number: 20180274890Abstract: Herein we describe embodiments of shotgun shells, methods for loading such shotgun shells, and methods for using them. In some embodiments, the shotgun shells utilize a multi-component wad system with a biodegradable powder wad that stays intact through the firing process, and a separate and chemically distinct biodegradable shot wad that breaks apart within one meter after being shot out of the barrel of a shotgun. A clean release of the shot can be obtained, providing both high performance and biodegradability. The biodegradable shot wad can be a biodegradable polyester.Type: ApplicationFiled: March 20, 2018Publication date: September 27, 2018Inventors: Kirk J. Havens, David M. Stanhope, Kory T. Angstadt, Jason P. McDevitt, Jay Menefee, David Daughtry
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Publication number: 20180274889Abstract: Herein we describe embodiments of a biodegradable wad having a gas sealing function, as well as methods for their use. In some embodiments, the biodegradable wad comprises at least 50% by weight of a poly(butylene succinate co-adipate) polymer. In some embodiments, the biodegradable wad comprises at least two biodegradable polymers, wherein a first biodegradable polymer comprises a polybutylene succinate adipate polymer and a second biodegradable polymer comprises a polyhydroxyalkanoate polymer. Plastic debris has a negative economic and ecological impact, and thus it is advantageous to use implements that will degrade into environmentally benign compounds. Incorporating a biodegradable wad into shotgun shells provides an effective, economical solution, provided cost is acceptable and performance is not compromised. Suitable shotgun shells utilizing biodegradable shotgun wads and methods are described herein.Type: ApplicationFiled: March 20, 2018Publication date: September 27, 2018Inventors: Kirk J. Havens, David M. Stanhope, Kory T. Angstadt, Jason P. McDevitt
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Publication number: 20170160062Abstract: Herein we describe shotgun shells each having a degradable wad comprising a polyhydroxyalkanoate polymer, as well as methods for ensuring that such wad degrades quickly after landing in an aquatic environment. Plastic, aquatic debris has a negative economic and ecological impact, and thus it is advantageous to use implements that will degrade into environmentally benign compounds. Incorporating a degradable wad into shotgun shells provides an effective, economical solution. Suitable degradable shotgun wads and methods are described herein.Type: ApplicationFiled: December 15, 2016Publication date: June 8, 2017Inventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt, Wade K. Blackwood
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Patent number: 9528800Abstract: Herein we describe shotgun shells each having a degradable wad comprising a polyhydroxyalkanoate polymer, as well as methods for ensuring that such wad degrades quickly after landing in an aquatic environment. Plastic, aquatic debris has a negative economic and ecological impact, and thus it is advantageous to use implements that will degrade into environmentally benign compounds. Incorporating a degradable wad into shotgun shells provides an effective, economical solution. Suitable degradable shotgun wads and methods are described herein.Type: GrantFiled: June 12, 2014Date of Patent: December 27, 2016Assignee: College of William and MaryInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt, Wade K. Blackwood
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Patent number: 9520074Abstract: Herein we describe fishing gear having a degradable identification component comprising a polyhydroxyalkanoate polymer, as well as methods for ensuring that such identification component degrades quickly after detachment. Aquatic debris has a negative economic and ecological impact, and thus it is advantageous to use implements that will degrade into environmentally benign compounds. Incorporating a degradable identification component into fishing gear provides an effective, economical solution. Suitable degradable identification components are described herein.Type: GrantFiled: February 14, 2014Date of Patent: December 13, 2016Assignee: College of William and MaryInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt
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Publication number: 20150135580Abstract: Herein we describe fishing gear having a degradable component comprising a polyhydroxyalkanoate polymer, as well as methods for ensuring that such gear has reduced functionality after becoming derelict. Derelict fishing gear has a negative economic and ecological impact, and thus it is advantageous to use gear that will lose the ability to catch and retain fish over time. Incorporating a degradable apparatus into such gear provides an effective, economical solution. Suitable degradable components are described herein.Type: ApplicationFiled: January 23, 2015Publication date: May 21, 2015Inventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt
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Patent number: 8938908Abstract: Herein we describe fishing gear having a polyhydroxyalkanoate degradable component, as well as methods for ensuring that such gear has reduced functionality after becoming derelict. Derelict fishing gear has a negative economic and ecological impact, and thus it is advantageous to use gear that will lose the ability to catch and retain fish over time. Incorporating a degradable apparatus into such gear provides an effective, economical solution. Suitable degradable components are described herein.Type: GrantFiled: May 15, 2014Date of Patent: January 27, 2015Assignee: College of William and MaryInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt
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Publication number: 20140366765Abstract: Herein we describe shotgun shells each having a degradable wad comprising a polyhydroxyalkanoate polymer, as well as methods for ensuring that such wad degrades quickly after landing in an aquatic environment. Plastic, aquatic debris has a negative economic and ecological impact, and thus it is advantageous to use implements that will degrade into environmentally benign compounds. Incorporating a degradable wad into shotgun shells provides an effective, economical solution. Suitable degradable shotgun wads and methods are described herein.Type: ApplicationFiled: June 12, 2014Publication date: December 18, 2014Inventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt, Wade K. Blackwood
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Publication number: 20140245655Abstract: Herein we describe fishing gear having a degradable component comprising a polyhydroxyalkanoate polymer, as well as methods for ensuring that such gear has reduced functionality after becoming derelict. Derelict fishing gear has a negative economic and ecological impact, and thus it is advantageous to use gear that will lose theability to catch and retain fish over time. Incorporating a degradable apparatus into such gear provides an effective, economical solution. Suitable degradable components are described herein.Type: ApplicationFiled: May 15, 2014Publication date: September 4, 2014Applicant: College of William and MaryInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt
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Publication number: 20140157649Abstract: Herein we describe fishing gear having a degradable identification component comprising a polyhydroxyalkanoate polymer, as well as methods for ensuring that such identification component degrades quickly after detachment. Aquatic debris has a negative economic and ecological impact, and thus it is advantageous to use implements that will degrade into environmentally benign compounds. Incorporating a degradable identification component into fishing gear provides an effective, economical solution. Suitable degradable identification components are described herein.Type: ApplicationFiled: February 14, 2014Publication date: June 12, 2014Applicant: College Of William and MaryInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt
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Publication number: 20140026916Abstract: Herein we describe a method for the reduction of pollution in aquatic systems by incorporating polyhydroxyalkanoate microbeads into personal care formulations such as exfoliants, cosmetics, and toothpaste. Suitable polyhydroxyalkanoate microbeads are biodegradable, have an average size of less than 400 microns, and sink rapidly in aquatic environments.Type: ApplicationFiled: July 25, 2013Publication date: January 30, 2014Applicant: College of William and MaryInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt
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Patent number: 8375623Abstract: Herein we describe crustacean fishing traps having degradable cull ring panels, as well as methods for ensuring that such traps have reduced functionality after becoming derelict. Derelict crab and lobster traps have a negative economic and ecological impact, and thus it is advantageous to use degradable traps that will lose their ability to catch and retain fish over time. Incorporating degradable cull ring panels into such traps provides an effective, economical solution. Suitable degradable cull ring panels are described herein.Type: GrantFiled: February 26, 2010Date of Patent: February 19, 2013Assignee: College of William and MaryInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt
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Publication number: 20120144722Abstract: Herein we describe crustacean fishing traps having degradable cull panels, as well as methods for ensuring that such traps have reduced functionality after becoming derelict. Derelict crab and lobster traps have a negative economic and ecological impact, and thus it is advantageous to use crustacean fishing traps that will lose their ability to catch and retain fish over time. Incorporating degradable cull panels into such traps provides an effective, economical solution. Suitable degradable cull panels are described herein.Type: ApplicationFiled: February 23, 2012Publication date: June 14, 2012Applicant: COLLEGE OF WILLIAM AND MARYInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt
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Publication number: 20100186283Abstract: Herein we describe crustacean fishing traps having degradable cull ring panels, as well as methods for ensuring that such traps have reduced functionality after becoming derelict. Derelict crab and lobster traps have a negative economic and ecological impact, and thus it is advantageous to use degradable traps that will lose their ability to catch and retain fish over time. Incorporating degradable cull ring panels into such traps provides an effective, economical solution. Suitable degradable cull ring panels are described herein.Type: ApplicationFiled: February 26, 2010Publication date: July 29, 2010Applicant: COLLEGE OF WILLIAM AND MARYInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt
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Publication number: 20090249681Abstract: Herein we describe crab traps having degradable cull ring panels, as well as methods for ensuring that crab traps have reduced functionality after becoming derelict. Derelict crab traps have a negative economic and ecological impact, and thus it is advantageous to use degradable crab traps that will lose their ability to catch and retain fish over time. Incorporating degradable cull ring panels into crab traps provides an effective, economical solution. Suitable degradable cull ring panels are described herein.Type: ApplicationFiled: February 27, 2009Publication date: October 8, 2009Applicant: COLLEGE OF WILLIAM AND MARYInventors: Kirk J. Havens, Donna Marie Bilkovic, David M. Stanhope, Kory T. Angstadt