Patents by Inventor Philip A. Welkhoff
Philip A. Welkhoff 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: 20240181047Abstract: Emulsion-based and micromolded (“MM”) or three dimensional printed (“3DP”) polymeric formulations for single injection of antigen, preferably releasing at two or more time periods, have been developed. Formulations are preferably formed of biocompatible, biodegradable polymers. Discrete regions encapsulating antigen, alone or in combination with other antigens, adjuvants, stabilizers, and release modifiers, are present in the formulations. Antigen is preferably present in excipient at the time of administration, or on the surface of the formulation, for immediate release, and incorporated within the formulation for release at ten to 45 days after initial release of antigen, optionally at ten to 90 day intervals for release of antigen in one or more additional time periods. Antigen may be stabilized through the use of stabilizing agents such as trehalose glass. In a preferred embodiment for immunization against polio, antigen is released at the time of administration, and two, four and six months thereafter.Type: ApplicationFiled: December 29, 2023Publication date: June 6, 2024Inventors: Ana Jaklenec, William Gates, Philip A. Welkhoff, Boris Nikolic, Lowell L. Wood, JR., Robert S. Langer, Thanh Duc Nguyen, Stephany Yi Tzeng, James J. Norman, Kevin McHugh
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Patent number: 11975069Abstract: Emulsion-based and micromolded (“MM”) or three dimensional printed (“3DP”) polymeric formulations for single injection of antigen, preferably releasing at two or more time periods, have been developed. Formulations are preferably formed of biocompatible, biodegradable polymers. Discrete regions encapsulating antigen, alone or in combination with other antigens, adjuvants, stabilizers, and release modifiers, are present in the formulations. Antigen is preferably present in excipient at the time of administration, or on the surface of the formulation, for immediate release, and incorporated within the formulation for release at ten to 45 days after initial release of antigen, optionally at ten to 90 day intervals for release of antigen in one or more additional time periods. Antigen may be stabilized through the use of stabilizing agents such as trehalose glass. In a preferred embodiment for immunization against polio, antigen is released at the time of administration, and two, four and six months thereafter.Type: GrantFiled: January 7, 2021Date of Patent: May 7, 2024Assignees: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, TOKITAE LLCInventors: Ana Jaklenec, William Gates, Philip A. Welkhoff, Boris Nikolic, Lowell L. Wood, Jr., Robert S. Langer, Thanh Duc Nguyen, Stephany Yi Tzeng, James J. Norman, Kevin McHugh
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Publication number: 20230372254Abstract: Salt formulations, which are resistant to moisture and cooking conditions, are described herein. The formulations provide particles of micronutrients and vitamins encapsulated within heat resistant pH-sensitive water-insoluble polymers, which are packaged within a salt shell. The pH-sensitive, water-insoluble, thermally stable materials stabilize the micronutrients, particularly at high temperatures, such as during food preparation and cooking, and release the micronutrients at the desired locations such as the stomach, small intestine, etc. Preferred pH-sensitive polymers release at a low pH, less than the pH present in the stomach. The particles can be used to deliver daily-recommended doses of micronutrients simultaneously with salt, eliminating the need for vitamin pills. This is particularly important in populations suffering from severe malnutrition.Type: ApplicationFiled: December 16, 2022Publication date: November 23, 2023Inventors: Ana Jaklenec, Xian Xu, Lowell L. Wood, Jr., Philip A. Welkhoff, William Gates, Boris Nikolic, Robert S. Langer
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Patent number: 11541017Abstract: Salt formulations, which are resistant to moisture and cooking conditions, are described herein. The formulations provide particles of micronutrients and vitamins encapsulated within heat resistant pH-sensitive water-insoluble polymers, which are packaged within a salt shell. The pH-sensitive, water-insoluble, thermally stable materials stabilize the micronutrients, particularly at high temperatures, such as during food preparation and cooking, and release the micronutrients at the desired locations such as the stomach, small intestine, etc. Preferred pH-sensitive polymers release at a low pH, less than the pH present in the stomach. The particles can be used to deliver daily-recommended doses of micronutrients simultaneously with salt, eliminating the need for vitamin pills. This is particularly important in populations suffering from severe malnutrition.Type: GrantFiled: April 11, 2017Date of Patent: January 3, 2023Assignees: MASSACHUSETTS INSTITUTE OF TECHNOLOGY, TOKITAE LLCInventors: Ana Jaklenec, Xian Xu, Lowell L. Wood, Jr., Philip A. Welkhoff, William Gates, Boris Nikolic, Robert S. Langer
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Publication number: 20210205444Abstract: Emulsion-based and micromolded (“MM”) or three dimensional printed (“3DP”) polymeric formulations for single injection of antigen, preferably releasing at two or more time periods, have been developed. Formulations are preferably formed of biocompatible, biodegradable polymers. Discrete regions encapsulating antigen, alone or in combination with other antigens, adjuvants, stabilizers, and release modifiers, are present in the formulations. Antigen is preferably present in excipient at the time of administration, or on the surface of the formulation, for immediate release, and incorporated within the formulation for release at ten to 45 days after initial release of antigen, optionally at ten to 90 day intervals for release of antigen in one or more additional time periods. Antigen may be stabilized through the use of stabilizing agents such as trehalose glass. In a preferred embodiment for immunization against polio, antigen is released at the time of administration, and two, four and six months thereafter.Type: ApplicationFiled: January 7, 2021Publication date: July 8, 2021Inventors: Ana Jaklenec, William Gates, Philip A. Welkhoff, Boris Nikolic, Lowell L. Wood, JR., Robert S. Langer, Thanh Duc Nguyen, Stephany Yi Tzeng, James J. Norman, Kevin McHugh
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Patent number: 10960073Abstract: Emulsion-based and micromolded (“MM”) or three dimensional printed (“3DP”) polymeric formulations for single injection of antigen, preferably releasing at two or more time periods, have been developed. Formulations are preferably formed of biocompatible, biodegradable polymers. Discrete regions encapsulating antigen, alone or in combination with other antigens, adjuvants, stabilizers, and release modifiers, are present in the formulations. Antigen is preferably present in excipient at the time of administration, or on the surface of the formulation, for immediate release, and incorporated within the formulation for release at ten to 45 days after initial release of antigen, optionally at ten to 90 day intervals for release of antigen in one or more additional time periods. Antigen may be stabilized through the use of stabilizing agents such as trehalose glass. In a preferred embodiment for immunization against polio, antigen is released at the time of administration, and two, four and six months thereafter.Type: GrantFiled: May 2, 2019Date of Patent: March 30, 2021Assignees: TOKITAE LLC, MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Ana Jaklenec, William Gates, Philip A. Welkhoff, Boris Nikolic, Lowell L. Wood, Jr., Robert S. Langer, Thanh Duc Nguyen, Stephany Yi Tzeng, James J. Norman, Kevin McHugh
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Patent number: 10941971Abstract: Portage storage containers including controlled evaporative cooling systems are described herein. In some embodiments, a portable container including an integral controlled evaporative cooling system includes: a storage region, an evaporative region adjacent to the storage region, a desiccant region adjacent to the outside of the container, and an insulation region positioned between the evaporative region and the desiccant region. A vapor conduit with an attached vapor control unit has a first end within the evaporative region and a second end within the desiccant region. In some embodiments, the controlled evaporative cooling systems are positioned in a radial configuration within the portable container.Type: GrantFiled: March 24, 2017Date of Patent: March 9, 2021Assignee: Tokitae LLCInventors: Fong Li Chou, Philip A. Welkhoff, Lawrence Morgan Fowler, Shieng Liu, Peter K. Maier-Laxhuber, Nels R. Peterson, Ivan Poleshchuk, Ralf W. Schmidt, Clarence T. Tegreene, Lowell L. Wood, Jr., Reiner M. Wörz, David J. Yager
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Patent number: 10783989Abstract: Embodiments disclosed herein relate to methods, devices, and computer systems thereof for automated data collection from a subject. In certain embodiments, one or more characteristics of a subject are sensed, and the subject is given a queue status indicator based on a comparison of the subject's one or more sensed characteristics with corresponding sensed characteristics from other subjects. In one embodiment, the subject is a healthcare worker and the system, methods, and devices are utilized to evaluate the overall health of the worker as part of the check-in process for work.Type: GrantFiled: January 19, 2017Date of Patent: September 22, 2020Assignee: Elwha LLCInventors: Mahalaxmi Gita Bangera, Michael H. Baym, Philip A. Welkhoff, Roderick A. Hyde, Muriel Y. Ishikawa, Elizabeth A. Sweeney, Lowell L. Wood, Jr.
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Publication number: 20190328871Abstract: Emulsion-based and micromolded (“MM”) or three dimensional printed (“3DP”) polymeric formulations for single injection of antigen, preferably releasing at two or more time periods, have been developed. Formulations are preferably formed of biocompatible, biodegradable polymers. Discrete regions encapsulating antigen, alone or in combination with other antigens, adjuvants, stabilizers, and release modifiers, are present in the formulations. Antigen is preferably present in excipient at the time of administration, or on the surface of the formulation, for immediate release, and incorporated within the formulation for release at ten to 45 days after initial release of antigen, optionally at ten to 90 day intervals for release of antigen in one or more additional time periods. Antigen may be stabilized through the use of stabilizing agents such as trehalose glass. In a preferred embodiment for immunization against polio, antigen is released at the time of administration, and two, four and six months thereafter.Type: ApplicationFiled: May 2, 2019Publication date: October 31, 2019Inventors: Ana Jaklenec, William Gates, Philip A. Welkhoff, Boris Nikolic, Lowell L. Wood, JR., Robert S. Langer, Thanh Duc Nguyen, Stephany Yi Tzeng, James J. Norman, Kevin McHugh
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Patent number: 10300136Abstract: Emulsion-based and micromolded (“MM”) or three dimensional printed (“3DP”) polymeric formulations for single injection of antigen, preferably releasing at two or more time periods, have been developed. Formulations are preferably formed of biocompatible, biodegradable polymers. Discrete regions encapsulating antigen, alone or in combination with other antigens, adjuvants, stabilizers, and release modifiers, are present in the formulations. Antigen is preferably present in excipient at the time of administration, or on the surface of the formulation, for immediate release, and incorporated within the formulation for release at ten to 45 days after initial release of antigen, optionally at ten to 90 day intervals for release of antigen in one or more additional time periods. Antigen may be stabilized through the use of stabilizing agents such as trehalose glass. In a preferred embodiment for immunization against polio, antigen is released at the time of administration, and two, four and six months thereafter.Type: GrantFiled: December 16, 2014Date of Patent: May 28, 2019Assignees: Massachusetts Institute of Technology, Tokitae LLCInventors: Ana Jaklenec, William Gates, Philip A. Welkhoff, Boris Nikolic, Lowell L. Wood, Robert S. Langer, Thanh Duc Nguyen, Stephany Yi Tzeng, James J. Norman, Kevin McHugh