Patents by Inventor Wai Tsang

Wai Tsang 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).

  • Patent number: 11926821
    Abstract: The quality of cell-free DNA for analysis is improved by techniques described herein. Cell-free DNA may include DNA with defects that do not allow for analysis of those DNA with techniques such as sequencing and targeted capture enrichment. These defects may be defects within the strands of the DNA and not present at the ends of the DNA. These intrastrand defects in cell-free DNA can be repaired. The repair of the defects in cell-free DNA may then allow for these repaired cell-free DNA to be analyzed by techniques, including sequencing and targeted capture enrichment.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: March 12, 2024
    Assignee: The Chinese University of Hong Kong
    Inventors: Yuk-Ming Dennis Lo, Cheuk Ho Tsang, Peiyong Jiang, Si Long Vong, Rossa Wai Kwun Chiu
  • Patent number: 11496588
    Abstract: Examples include a multi-node cluster having a node with a clustering layer. The clustering layer may be located between an application programming interface (API) layer and a service layer and the multi-node cluster may be associated with a database. In some examples, the clustering layer may discover whether a number of nodes associated with the multi-node cluster has changed. Based, at least in part, on the determination that the number of nodes associated with the multi-node cluster has changed, at the clustering layer, the database may be sharded and a new API call may be issued to the API layer.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: November 8, 2022
    Assignee: Micro Focus LLC
    Inventors: Chiu Wai Tsang, Christopher Johnson
  • Patent number: 10493056
    Abstract: The present invention relates to a group of derivatives synthesized based on the ent-kaurane diterpenoid flexicaulin A and the methods to synthesize such diterpenoid derivatives. In particular, the chemical entities of such synthetic diterpene compounds in the manufacture of a medicament is for the treatment of tumors or cancers.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: December 3, 2019
    Assignee: Hong Kong Baptist University
    Inventors: Hongjie Zhang, Man Shing Ricky Wong, Lei Guo, Siu Wai Tsang, Kanglun Liu, Tongxin Zhang
  • Patent number: 10351500
    Abstract: The present invention relates to a composition for preventing or reducing microbial growth, particularly the growth of dermatophytic fungi, and/or aciduric and acidogenic gram-positive bacteria. More particularly, it relates to the use of trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol, or its dihydrostilbene derivatives and/or chemical variants as an anti-microbial agent. The present invention further relates to the management of dermatophytosis often caused by dermatophytic fungi and the management of dental caries often mediated by aciduric and acidogenic gram-positive Streptococci. The present invention therefore has applications in preventing, alleviating and/or treating dermatophytosis and dental caries.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: July 16, 2019
    Assignee: HONG KONG BAPTIST UNIVERSITY
    Inventors: Hongjie Zhang, Siu Wai Tsang
  • Patent number: 10188590
    Abstract: The present invention relates to a skin-protection composition that comprises stilbenoid(s) and/or stilbenoid-containing extract(s) obtained from Dendrobium plants, such as Dendrobium officinale and Dendrobium nobile for the management of melanogenesis, skin-darkening and skin-aging. More particularly, it relates to the usage of Dendrobium ingredients and stilbenoids to reduce the formation of melanin in melanocytes. It also relates to the usage of Dendrobium ingredients and stilbenoids to reduce the generation of reactive oxygen species and oxidative free radicals. This invention relates to the use Dendrobium-derived extracts or ingredients or stilbenoids in the formulation of skin-protection, skin-whitening and/or anti-skin aging products.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 29, 2019
    Assignee: Hong Kong Baptist University
    Inventors: Hongjie Zhang, Siu Wai Tsang, Yu Zhu
  • Publication number: 20180319729
    Abstract: The present invention relates to a composition for preventing or reducing microbial growth, particularly the growth of dermatophytic fungi, and/or aciduric and acidogenic gram-positive bacteria. More particularly, it relates to the use of trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol, or its dihydrostilbene derivatives and/or chemical variants as an anti-microbial agent. The present invention further relates to the management of dermatophytosis often caused by dermatophytic fungi and the management of dental caries often mediated by aciduric and acidogenic gram-positive Streptococci. The present invention therefore has applications in preventing, alleviating and/or treating dermatophytosis and dental caries.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 8, 2018
    Inventors: Hongjie ZHANG, Siu Wai TSANG
  • Publication number: 20180228709
    Abstract: The present invention relates to a skin-protection composition that comprises stilbenoid(s) and/or stilbenoid-containing extract(s) obtained from Dendrobium plants, such as Dendrobium officinale and Dendrobium nobile for the management of melanogenesis, skin-darkening and skin-aging. More particularly, it relates to the usage of Dendrobium ingredients and stilbenoids to reduce the formation of melanin in melanocytes. It also relates to the usage of Dendrobium ingredients and stilbenoids to reduce the generation of reactive oxygen species and oxidative free radicals. This invention relates to the use Dendrobium-derived extracts or ingredients or stilbenoids in the formulation of skin-protection, skin-whitening and/or anti-skin aging products.
    Type: Application
    Filed: March 16, 2018
    Publication date: August 16, 2018
    Inventors: Hongjie ZHANG, Siu Wai TSANG, Yu ZHU
  • Patent number: 10017442
    Abstract: The present invention relates to a polyphenol derivative of the stilbenoid family, namely trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol, as a remedial agent. In particular, the present invention presents the usage of dihydro-resveratrol or its derivatives/chemical variants in the manufacture of a medicament for the treatment of tumors or cancers. The dihydrostilbenes can be used in the treatment or delay of progression of a cancer in a patient or used in a pharmaceutical formulation for the aforementioned purposes.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: July 10, 2018
    Assignee: Hong Kong Baptist University
    Inventors: Hongjie Zhang, Siu Wai Tsang
  • Publication number: 20180118647
    Abstract: The present invention relates to a polyphenol derivative of the stilbenoid family, namely trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol, as a remedial agent. In particular, the present invention presents the usage of dihydro-resveratrol or its derivatives/chemical variants in the manufacture of a medicament for the treatment of tumors or cancers. The dihydrostilbenes can be used in the treatment or delay of progression of a cancer in a patient or used in a pharmaceutical formulation for the aforementioned purposes.
    Type: Application
    Filed: December 20, 2017
    Publication date: May 3, 2018
    Inventors: Hongjie ZHANG, Siu Wai TSANG
  • Patent number: 9956152
    Abstract: A skin-protection composition is shown that comprises stilbenoid(s) and/or stilbenoid-containing extract(s) obtained from Dendrobium plants, such as Dendrobium officinale and Dendrobium nobile for the management of melanogenesis, skin-darkening and skin-aging. More particularly, the usage of Dendrobium ingredients and stilbenoids is shown to reduce the formation of melanin in melanocytes. The usage of Dendrobium ingredients and stilbenoids is also shown to reduce the generation of reactive oxygen species and oxidative free radicals. The use of Dendrobium-derived extracts or ingredients or stilbenoids is shown in the formulation of skin-protection, skin-whitening and/or anti-skin aging products.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: May 1, 2018
    Inventors: Hongjie Zhang, Siu Wai Tsang, Yu Zhu
  • Publication number: 20180085344
    Abstract: The present invention relates to a group of derivatives synthesized based on the ent-kaurane diterpenoid flexicaulin A and the methods to synthesize such diterpenoid derivatives. In particular, the chemical entities of such synthetic diterpene compounds in the manufacture of a medicament is for the treatment of tumors or cancers.
    Type: Application
    Filed: September 21, 2017
    Publication date: March 29, 2018
    Inventors: Hongjie ZHANG, Man Shing Ricky WONG, Lei GUO, Siu Wai TSANG, Kanglun LIU, Tongxin ZHANG
  • Patent number: 9877931
    Abstract: The present invention relates to a polyphenol derivative of the stilbenoid family, namely trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol, as a remedial agent. In particular, the present invention presents the usage of dihydro-resveratrol as an anti-fibrotic agent in suppressing the activation of pancreatic stellate cells (PSCs). One embodiment of the present invention also relates to the management of pancreatic fibrosis, which is often accompanied with chronic pancreatitis and desmoplastic reaction of pancreatic cancer. Another embodiment of the present invention also has applications in preventing or alleviating or treating pancreatic cancer or pancreatogenic diabetes.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: January 30, 2018
    Assignee: HONG KONG BAPTIST UNIVERSITY
    Inventors: Hongjie Zhang, Siu Wai Tsang, Yegao Chen
  • Publication number: 20170366624
    Abstract: Examples include a multi-node cluster having a node with a clustering layer. The clustering layer may be located between an application programming interface (API) layer and a service layer and the multi-node cluster may be associated with a database. In some examples, the clustering layer may discover whether a number of nodes associated with the multi-node cluster has changed. Based, at least in part, on the determination that the number of nodes associated with the multi-node cluster has changed, at the clustering layer, the database may be sharded and a new API call may be issued to the API layer.
    Type: Application
    Filed: June 21, 2016
    Publication date: December 21, 2017
    Inventors: Chiu Wai Tsang, Christopher Johnson
  • Patent number: 9795589
    Abstract: The present invention relates to a group of derivatives synthesized based on the ent-kaurane diterpenoid flexicaulin A and the methods to synthesize such diterpenoid derivatives. In particular, the chemical entities of such synthetic diterpene compounds in the manufacture of a medicament is for the treatment of tumors or cancers.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: October 24, 2017
    Assignee: HONG KONG BAPTIST UNIVERSITY
    Inventors: Hongjie Zhang, Man Shing Ricky Wong, Lei Guo, Siu Wai Tsang, Kanglun Liu, Tongxin Zhang
  • Publication number: 20170290782
    Abstract: The present invention relates to a polyphenol derivative of the stilbenoid family, namely trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol, as a remedial agent. In particular, the present invention presents the usage of dihydro-resveratrol as an anti-fibrotic agent in suppressing the activation of pancreatic stellate cells (PSCs). One embodiment of the present invention also relates to the management of pancreatic fibrosis, which is often accompanied with chronic pancreatitis and desmoplastic reaction of pancreatic cancer. Another embodiment of the present invention also has applications in preventing or alleviating or treating pancreatic cancer or pancreatogenic diabetes.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 12, 2017
    Inventors: Hongjie ZHANG, Siu Wai TSANG, Yegao CHEN
  • Patent number: 9738581
    Abstract: A polyphenol derivative of the stilbenoid family, namely trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol, is disclosed as a remedial agent. In particular, the usage of dihydro-resveratrol as an anti-fibrotic agent in suppressing the activation of pancreatic stellate cells (PSCs) is presented. One embodiment also relates to the management of pancreatic fibrosis, which is often accompanied with chronic pancreatitis and desmoplastic reaction of pancreatic cancer. Another embodiment has applications in preventing or alleviating or treating pancreatic cancer or pancreatogenic diabetes.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: August 22, 2017
    Assignee: Hong Kong Baptist University
    Inventors: Hongjie Zhang, Siu Wai Tsang, Yegao Chen
  • Publication number: 20170057896
    Abstract: A polyphenol derivative of the stilbenoid family, namely trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol, is disclosed as a remedial agent. In particular, the usage of dihydro-resveratrol as an anti-fibrotic agent in suppressing the activation of pancreatic stellate cells (PSCs) is presented. One embodiment also relates to the management of pancreatic fibrosis, which is often accompanied with chronic pancreatitis and desmoplastic reaction of pancreatic cancer. Another embodiment has applications in preventing or alleviating or treating pancreatic cancer or pancreatogenic diabetes.
    Type: Application
    Filed: November 15, 2016
    Publication date: March 2, 2017
    Inventors: Hongjie ZHANG, Siu Wai TSANG, Yegao CHEN
  • Publication number: 20170057906
    Abstract: A skin-protection composition is shown that comprises stilbenoid(s) and/or stilbenoid-containing extract(s) obtained from Dendrobium plants, such as Dendrobium officinale and Dendrobium nobile for the management of melanogenesis, skin-darkening and skin-aging. More particularly, the usage of Dendrobium ingredients and stilbenoids is shown to reduce the formation of melanin in melanocytes. The usage of Dendrobium ingredients and stilbenoids is also shown to reduce the generation of reactive oxygen species and oxidative free radicals. The use of Dendrobium-derived extracts or ingredients or stilbenoids is shown in the formulation of skin-protection, skin-whitening and/or anti-skin aging products.
    Type: Application
    Filed: November 16, 2016
    Publication date: March 2, 2017
    Inventors: Hongjie ZHANG, Siu Wai TSANG, Yu ZHU
  • Patent number: 9526706
    Abstract: The present invention relates to a method of using trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol for treating acute pancreatitis in a subject in needs thereof. More particularly, the present invention relates to a method of using dihydro-resveratrol, its derivatives and/or chemical variants as a remedial agent. The present invention particularly relates to the amelioration of tissue injury for the management of acute pancreatitis associated pulmonary injury of a subject.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: December 27, 2016
    Assignee: Hong Kong Baptist University
    Inventors: Zhaoxiang Bian, Siu Wai Tsang, Hongjie Zhang, Aiping Lu, Albert Sun-Chi Chan
  • Publication number: 20160367498
    Abstract: The present invention relates to a method of using trans-3,5,4?-trihydroxybibenzyl, also known as dihydro-resveratrol for treating acute pancreatitis in a subject in needs thereof. More particularly, the present invention relates to a method of using dihydro-resveratrol, its derivatives and/or chemical variants as a remedial agent. The present invention particularly relates to the amelioration of tissue injury for the management of acute pancreatitis associated pulmonary injury of a subject.
    Type: Application
    Filed: June 16, 2015
    Publication date: December 22, 2016
    Inventors: Zhaoxiang BIAN, Siu Wai TSANG, Hongjie ZHANG, Aiping LU, Albert Sun-Chi CHAN