Patents by Inventor Cha-Mei Tang

Cha-Mei Tang 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).

  • Publication number: 20240345070
    Abstract: Means for predicting treatment response in a subject having cancer are disclosed, where the predictions are based comparing the number and size of circulating cancer associated macrophage-like cells (CMLS) and circulating tumor cells (CTCs) found in biological samples at baseline and after induction of therapy, such as blood, from the subject.
    Type: Application
    Filed: July 21, 2022
    Publication date: October 17, 2024
    Applicant: Creatv MicroTech, Inc.
    Inventors: Daniel L. ADAMS, Cha-Mei TANG
  • Publication number: 20240319196
    Abstract: Means for predicting (i) multiple organ metastasis and/or multifocal metastatic disease and (ii) overall survival (OS) and progression free survival (PFS) of subjects having cancer are disclosed, where the predictions are based on the number and size of circulating cancer associated macrophage-like cells (CAMLs) found in a biological sample, such as blood, from the subject.
    Type: Application
    Filed: July 6, 2022
    Publication date: September 26, 2024
    Applicant: Creatv Micro Tech Inc.
    Inventors: Daniel L. Adams, Cha-Mei TANG
  • Publication number: 20240312665
    Abstract: High-resolution, X-ray phase contrast microscopy, a key technique with promising potential in biomedical imaging and diagnostics, is based on narrow-slit high-aspect-ratio gold gratings. We present the development, fabrication details, and experimental testing of the freestanding 10-?m-thick gold membrane masks with an array of 0.9-1.5 ?m void slit apertures for a novel low-energy X-ray microscope. The overall mask size is 4 mm×4 mm, with a grating pitch of 7.5 ?m, 6.0-6.6-?m-wide gold bars are supported by 3-?m-wide crosslinks at 400 ?m intervals. The fabrication process is based on gold electroplating into a silicon mold coated with various thin films to form a voltage barrier, plating base, and sacrificial layer, followed by the mold removal to obtain the freestanding gold membrane with void slit apertures. We discuss key aspects for the materials and processes, including gold structures homogeneity, residual stresses, and prevention of collapsing of the grid elements.
    Type: Application
    Filed: October 6, 2023
    Publication date: September 19, 2024
    Applicant: Creatv MicroTech, Inc.
    Inventors: Olga V. Makarova, Ralu Divan, Nicolaie Moldovan, David A. Czaplewski, Cha-Mei Tang
  • Patent number: 11860157
    Abstract: A microfilter having a hydrophilic surface and suited for size-based capture and analysis of cells, such as circulating cancer cells, from whole blood and other human fluids is disclosed. The filter material is photo-definable, allowing the formation of precision pores by UV lithography. Exemplary embodiments provide a device that combines a microfilter with 3D nanotopography in culture scaffolds that mimic the 3D in vivo environment to better facilitate growth of captured cells.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: January 2, 2024
    Assignee: CREATV MICROTECH, INC.
    Inventors: Olga Makarova, Cha-Mei Tang, Peixuan Zhu, Shuhong Li, Daniel Adams, Platte T. Amstutz
  • Patent number: 11613115
    Abstract: A microfilter comprising a polymer layer formed from epoxy-based photo-definable dry film, and a plurality of apertures each extending through the polymer layer. A method of forming a microfilter is also disclosed. The method includes providing a first layer of epoxy-based photo-definable dry film disposed on a substrate, exposing the first layer to energy through a mask to form a pattern, defined by the mask, in the first layer of dry film, forming, from the exposed first layer of dry film, a polymer layer having a plurality of apertures extending therethrough, the plurality of apertures having a distribution defined by the pattern, and removing the polymer layer from the substrate.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: March 28, 2023
    Assignee: CREATV MICROTECH, INC.
    Inventors: Olga V. Makarova, Cha-Mei Tang, Platte T Amstutz
  • Publication number: 20220252605
    Abstract: Methods of using detection of PD-L1 expression by circulating cancer cells in the screening, monitoring, treatment and diagnosis of cancer in subjects are disclosed. The methods are based on assaying one or more of circulating tumor cells (CTCs), epithelial to mesenchymal transition CTCs (EMTCTCs), cancer associated macrophage-like cells (CAMLs), and cancer associated vascular endothelial cells (CAVEs) isolated from a subject having cancer for PD-L1 expression.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Applicant: Creatv MicroTech, Inc.
    Inventors: Daniel ADAMS, Cha-Mei TANG
  • Patent number: 11353459
    Abstract: Methods of using detection of PD-L1 expression by circulating cancer cells in the screening, monitoring, treatment and diagnosis of cancer in subjects are disclosed. The methods are based on assaying one or more of circulating tumor cells (CTCs), epithelial to mesenchymal transition CTCs (EMTCTCs), cancer associated macrophage-like cells (CAMLs), and cancer associated vascular endothelial cells (CAVEs) isolated from a subject having cancer for PD-L1 expression.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: June 7, 2022
    Assignee: CREATV MICROTECH, INC.
    Inventors: Daniel Adams, Cha-Mei Tang
  • Publication number: 20220128544
    Abstract: Means for predicting overall survival (OS) and progression free survival (PFS) of subjects having cancer are disclosed, where the predictions are based on the number of CCR5 pools in circulating cells, such as circulating cancer associated macrophage-like cells (CAMLs) and circulating tumor cells (CTCs) found in a biological sample, such as blood, from the subject. CCR5 expression can also be used for companion or complementary diagnostics.
    Type: Application
    Filed: February 13, 2020
    Publication date: April 28, 2022
    Applicant: Creatv MicroTech, Inc.
    Inventors: Daniel L. ADAMS, Cha-Mei TANG
  • Publication number: 20220074922
    Abstract: A microfilter having a hydrophilic surface and suited for size-based capture and analysis of cells, such as circulating cancer cells, from whole blood and other human fluids is disclosed. The filter material is photo-definable, allowing the formation of precision pores by UV lithography. Exemplary embodiments provide a device that combines a microfilter with 3D nanotopography in culture scaffolds that mimic the 3D in vivo environment to better facilitate growth of captured cells.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Applicant: Creatv MicroTech, Inc.
    Inventors: Olga Makarova, Cha-Mei Tang, Peixuan Zhu, Shuhong Li, Daniel Adams, Platte T. Amstutz
  • Publication number: 20220042970
    Abstract: A new sensitive cell biomarker of solid tumors is identified in blood. This biomarker can be used to determine presence of solid tumors, rapid determination of treatment response, early detection of cancer, early detection of cancer recurrence, and may be used to determine therapy.
    Type: Application
    Filed: October 25, 2021
    Publication date: February 10, 2022
    Applicant: Creatv MicroTech, Inc.
    Inventors: Daniel Adams, Cha-Mei Tang
  • Publication number: 20220034888
    Abstract: Circulating tumor cells (CTCs) are associated with metastasis of malignant solid tumors in a patient. Presented here is evidence that CTCs exhibit cell cycle phase variability and that there is a strong correlation between the number of CTCs in a mitotic cell cycle phase and the prospects for long term survival of the subject from which the cells were obtained. Also presented herein are methods of determining the mitotic cell cycle phase of CTCs from a patient having cancer and using the information in grading malignant solid tumors and predicting the likelihood of survival of the patient.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 3, 2022
    Applicant: CREATV MICROTECH INC.
    Inventors: Daniel ADAMS, Cha-Mei TANG
  • Patent number: 11175279
    Abstract: A microfilter having a hydrophilic surface and suited for size-based capture and analysis of cells, such as circulating cancer cells, from whole blood and other human fluids is disclosed. The filter material is photo-definable, allowing the formation of precision pores by UV lithography. Exemplary embodiments provide a device that combines a microfilter with 3D nanotopography in culture scaffolds that mimic the 3D in vivo environment to better facilitate growth of captured cells.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: November 16, 2021
    Assignee: Creatv Microtech, Inc.
    Inventors: Olga Makarova, Cha-Mei Tang, Peixuan Zhu, Shuhong Li, Daniel Adams, Platte T. Amstutz
  • Patent number: 11156596
    Abstract: A new sensitive cell biomarker of solid tumors is identified in blood. This biomarker can be used to determine presence of solid tumors, rapid determination of treatment response, early detection of cancer, early detection of cancer recurrence, and may be used to determine therapy.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 26, 2021
    Assignee: CREATV MICROTECH, INC.
    Inventors: Daniel Adams, Cha-Mei Tang
  • Patent number: 11150245
    Abstract: Circulating tumor cells (CTCs) are associated with metastasis of malignant solid tumors in a patient. Presented here is evidence that CTCs exhibit cell cycle phase variability and that there is a strong correlation between the number of CTCs in a mitotic cell cycle phase and the prospects for long term survival of the subject from which the cells were obtained. Also presented herein are methods of determining the mitotic cell cycle phase of CTCs from a patient having cancer and using the information in grading malignant solid tumors and predicting the likelihood of survival of the patient.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: October 19, 2021
    Assignee: Creatv Microtech, Inc.
    Inventors: Daniel Adams, Cha-Mei Tang
  • Publication number: 20210132073
    Abstract: A new sensitive cell biomarker of solid tumors and viral infection is identified in blood. This biomarker can be used to determine presence of carcinomas, sarcomas, and viruses, rapid determination of treatment response, early detection of cancer, early detection of cancer recurrence, and may be used to determine therapy.
    Type: Application
    Filed: December 21, 2020
    Publication date: May 6, 2021
    Applicant: Creatv MicroTech, Inc.
    Inventors: Cha-Mei TANG, Daniel ADAMS
  • Publication number: 20210041445
    Abstract: Means for monitoring treatment response and disease progression in subjects are disclosed, where the predictions are based on the change of number and/or size of circulating cancer associated macrophage-like cells (CAMLs) found in a biological ample, such as blood, from the subject.
    Type: Application
    Filed: March 13, 2019
    Publication date: February 11, 2021
    Applicant: Creatv MicroTech, Inc.
    Inventors: Daniel ADAMS, Cha-Mei TANG
  • Patent number: 10871491
    Abstract: A new sensitive cell biomarker of solid tumors and viral infection is identified in blood. This biomarker can be used to determine presence of carcinomas, sarcomas, and viruses, rapid determination of treatment response, early detection of cancer, early detection of cancer recurrence, and may be used to determine therapy.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: December 22, 2020
    Assignee: CREATV MICROTECH, INC.
    Inventors: Cha-Mei Tang, Daniel Adams
  • Publication number: 20200049713
    Abstract: The characterization of nucleic acids obtained from cancer-associated cells circulating in the blood of a subject, and the use of such characterizations in cancer screening, diagnostics, treatment, and recurrence, are disclosed.
    Type: Application
    Filed: April 2, 2018
    Publication date: February 13, 2020
    Applicant: Creatv MicroTech, Inc.
    Inventors: Daniel ADAMS, Cha-Mei TANG
  • Publication number: 20200003781
    Abstract: Means for predicting overall survival (OS) and progression free survival (PFS) of subjects having cancer are disclosed, where the predictions are based on the number arid size of circulating cancer associated macrophage-like cells (CAMLs) found in a biological sample, such as blood, from the subject.
    Type: Application
    Filed: February 16, 2018
    Publication date: January 2, 2020
    Applicant: Creatv MicroTech, Inc.
    Inventors: Daniel ADAMS, Cha-Mei TANG
  • Publication number: 20190383794
    Abstract: A microfilter having a hydrophilic surface and suited for size-based capture and analysis of cells, such as circulating cancer cells, from whole blood and other human fluids is disclosed. The filter material is photo-definable, allowing the formation of precision pores by UV lithography. Exemplary embodiments provide a device that combines a microfilter with 3D nanotopography in culture scaffolds that mimic the 3D in vivo environment to better facilitate growth of captured cells.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 19, 2019
    Applicant: Creatv MicroTech, Inc.
    Inventors: Olga Makarova, Cha-Mei Tang, Peixuan Zhu, Shuhong Li, Daniel Adams, Platte T. Amstutz