Patents by Inventor Karen Davies
Karen Davies 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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Publication number: 20230380525Abstract: A dispersible nanoparticle (200) for use in anti-pathogenic applications is presented. The dispersible nanoparticle has a core (210) made of a metal or a metal alloy compound. The core (210) is coated with at least one of a carboxylic acid and a water soluble polymer (220). Also presented is a membrane coated with the dispersible nanoparticles and a corresponding method of coating the membrane. The membrane may be used is various products including a face mask and an air filter for use in an air conditioning unit.Type: ApplicationFiled: October 21, 2021Publication date: November 30, 2023Applicant: PHARM 2 FARM LIMITEDInventors: Gareth Wynn Vaughan CAVE, Karen DAVIES
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Publication number: 20020040713Abstract: A drug powder inhaler has a cover plate pivotably attached to a lid on an inhaler housing. A lever is pivotably attached to the cover plate. A blister pack disk is rotatably mounted on the housing under the cover plate. A powder duct in the housing extends from a staging chamber underneath one end of the lever to an aerosolizing chamber. An actuator in the housing is pressed to shear open a blister on the blister pack disk and thereby deliver the drug dose contents of the blister into the staging chamber. A switch senses pressure in the mouthpiece and switches on a motor spinning an impeller within the aerosolizing chamber, when inhalation is detected.Type: ApplicationFiled: November 7, 2001Publication date: April 11, 2002Applicant: Dura Pharmaceuticals, Inc.Inventors: Robert F. Eisele, Karen Davies, Nelson Holton, Tim Kline, Ian Smith
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Patent number: 6328034Abstract: A drug powder inhaler has a cover plate pivotably attached to a lid on an inhaler housing. A lever is pivotably attached to the cover plate. A blister pack disk is rotatably mounted on the housing under the cover plate. A powder duct in the housing extends from a staging chamber underneath one end of the lever to an aerosolizing chamber. An actuator in the housing is pressed to shear open a blister on the blister pack disk and thereby deliver the drug dose contents of the blister into the staging chamber. A switch senses pressure in the mouthpiece and switches on a motor spinning an impeller within the aerosolizing chamber, when inhalation is detected.Type: GrantFiled: July 13, 1999Date of Patent: December 11, 2001Assignee: Dura Pharmaceuticals, Inc.Inventors: Robert F. Eisele, Karen Davies, Nelson Holton, Tim Kline, Ian Smith
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Patent number: 6273085Abstract: A dry powder inhaler has a lid pivotally attached to an inhaler housing. A medicine containing cartridge is attached to the top of the housing and includes a cartridge ring with apertures for holding dry powdered medicine. A slide-groove assembly located on the underside of the lid advances the cartridge ring to a next aperture when a user first opens, then closes the lid. A venturi air passageway assembly is contained within the housing of the dry powdered inhaler. The venturi air passageway assembly includes a tapered inlet section, a throat section, and a tapered outlet section. A pressure switch is advantageously located within the housing for actuating the mixing process within the mixing chamber. During inhalation, the pressure switch contained within the housing actuates the motor driven impeller within the mixing chamber of the inhaler when the pressure within the venturi air passageway reaches a predetermined level.Type: GrantFiled: January 5, 1999Date of Patent: August 14, 2001Assignee: Dura Pharmaceuticals, Inc.Inventors: Robert Eisele, Karen Davies, Jeffrey Chen, Bernard Greenspan
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Patent number: 6116238Abstract: A dry powder inhaler has a slider for incrementally advancing a blister disk, to provide successive doses of a dry powder pharmaceutical. A blister disk is rotatably supported on a spindle on a deck plate of the inhaler. A powder port, an advancing slot, and a lifter slot extend through the deck plate. A slider is attached to the deck plate and movable between open and closed positions. As the slider is opened, a litter moves up on a ramp on the slider to shear open a blister, so that the blister contents can be mixed with air and inhaled. As the slider is moved back to the closed position, the lifter is withdrawn and an advancing finger turns the disk to bring the next blister into position for opening to provide the next dose to the patient.Type: GrantFiled: December 2, 1997Date of Patent: September 12, 2000Assignee: Dura Pharmaceuticals, Inc.Inventors: Thomas R. Jackson, Karen Davies, Jeff Chen, Mike Ligotke, Allan Cameron
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Patent number: 6006747Abstract: A dry powder inhaler has a lid pivotally attached to an inhaler housing. A medicine containing cartridge is attached to the top of the housing and includes a cartridge ring with apertures for holding dry powdered medicine. A slide-groove assembly located on the underside of the lid advances the cartridge ring to a next aperture when a user first opens, then closes the lid. A venturi air passageway assembly is contained within the housing of the dry powdered inhaler. The venturi air passageway assembly includes a tapered inlet section, a throat section, and a tapered outlet section. A pressure switch is advantageously located within the housing for actuating the mixing process within the mixing chamber. During inhalation, the pressure switch contained within the housing actuates the motor driven impeller within the mixing chamber of the inhaler when the pressure within the venturi air passageway reaches a predetermined level.Type: GrantFiled: March 20, 1997Date of Patent: December 28, 1999Assignee: Dura Pharmaceuticals, Inc.Inventors: Robert Eisele, Karen Davies, Jeffrey Chen, Bernard Greenspan
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Patent number: 5921237Abstract: A drug powder inhaler has a cover plate pivotably attached to a lid on an inhaler housing. A lever is pivotably attached to the cover plate. A blister pack disk is rotatably mounted on the housing under the cover plate. A powder duct in the housing extends from a staging chamber underneath one end of the lever to an aerosolizing chamber. An actuator in the housing is pressed to shear open a blister on the blister pack disk and thereby deliver the drug dose contents of the blister into the staging chamber. A switch senses pressure in the mouthpiece and switches on a motor spinning an impeller within the aerosolizing chamber, when inhalation is detected.Type: GrantFiled: July 22, 1996Date of Patent: July 13, 1999Assignee: Dura Pharmaceuticals, Inc.Inventors: Robert F. Eisele, Karen Davies, Nelson Holton, Tim Kline, Ian Smith
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Patent number: D384283Type: GrantFiled: April 15, 1996Date of Patent: September 30, 1997Assignee: Dura Pharmaceuticals, Inc.Inventors: Karen Davies, Robert F. Eisele, Clyde Witham
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Patent number: D395499Type: GrantFiled: April 8, 1996Date of Patent: June 23, 1998Assignee: Dura Pharmaceuticals, Inc.Inventors: Robert F. Eisele, Karen Davies, Allan Cameron, Greg Halus, Nelson Holton, Tim Kline, Ian Smith
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Patent number: D405361Type: GrantFiled: December 2, 1997Date of Patent: February 9, 1999Assignee: Dura Pharmaceuticals, Inc.Inventors: Allan Cameron, Thomas R. Jackson, Karen Davies