Patents by Inventor Weimin Liu
Weimin Liu 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: 10232574Abstract: The present invention general related to a reusable mold and a method of using the mold to manufacture contact lenses. The mold comprises a first mold half having a first mold surface in contact with a lens forming composition and a second mold half having a second mold surface in contact with the lens forming composition, wherein the first mold half and the second mold half are configured to receive each other such that a cavity is formed between the first mold surface and the second mold surface, wherein the cavity defines the shape of a contact lens to be molded, wherein the lens forming composition is polymerizable and/or crosslinkable by an actinic radiation, wherein at least one of the mold halves is a precision press molded mold made from an oxide glass selected from a group consisting of borosilicates glass and fluorophosphates glass.Type: GrantFiled: December 16, 2015Date of Patent: March 19, 2019Assignee: NOVARTIS AGInventors: Alice Weimin Liu, Burkhard Dietrich
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Publication number: 20190039269Abstract: The present invention discloses a method for preparing a double-network hydrogel tube with a complex structure. Iron wires of different sizes are mechanically polished, arranged in different manners, and then immersed into a monomer prepolymer solution, or a monomer prepolymer is poured into a container containing iron wires of different arranged shapes to conduct a polymerization reaction, such that a uniform primary-crosslinked single-network hydrogel film can be rapidly grown on the surface of each iron wire. The hydrogel film is then immersed in a secondary-crosslinking solution for secondary crosslinking to build a double-network hydrogel film. After immersion processing, the wires are drawn out to obtain high-strength hollow double-network hydrogel tubes of different shapes. The hydrogel tube has a diameter of 10 micrometers to a few millimeters, the shape of the tube inner structure is highly controllable, and the tensile strength of the hydrogel tube can be up to 2 MPa.Type: ApplicationFiled: January 11, 2018Publication date: February 7, 2019Applicant: Lanzhou Institute of Chemical Physics, Chinese Academy of SciencesInventors: Feng ZHOU, Shuanhong MA, Weimin LIU
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Publication number: 20190016074Abstract: The invention is directed to a reusable mold for making a contact lens and the reusable mold has at least one of the mold halves is made from an oxide glass having a Knoop Hardness less than HK 350. The invention is also directed to a method for making an optical part by single point diamond turning an oxide glass having a Knoop Hardness HK less than 350.Type: ApplicationFiled: June 21, 2018Publication date: January 17, 2019Inventors: Alice Weimin Liu, Gregory L. Herron
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Patent number: 10160141Abstract: The present invention general related to a mold for making a contact lens comprises a first mold half having a first mold surface in contact with a polymerizable and/or crosslinkable silicone containing lens forming composition and a second mold half having a second mold surface in contact with the lens-forming composition, and the first mold half and the second mold half are configured to receive each other such that a cavity is formed between the first mold surface and the second mold surface. The cavity defines the shape of a contact lens to be molded. At least one of the mold halves is made from a sulfur containing polymer having a refraction index greater than 1.5. The dimension stability of the plastic mold can be improved.Type: GrantFiled: November 16, 2015Date of Patent: December 25, 2018Assignee: Novartis AGInventors: Alice Weimin Liu, Gregory L. Herron
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Publication number: 20180344723Abstract: Disclosed are novel substituted 2H-isoquinolin-1-one and 3H-quinazolin-4-one derivatives useful as inhibitors of Rho kinase and for treating a variety of diseases and disorders that are mediated or sustained through the activity of Rho kinase, including cardiovascular diseases, pharmaceutical compositions comprising such compounds, methods for using such compounds and processes for making such compounds.Type: ApplicationFiled: December 29, 2017Publication date: December 6, 2018Inventors: Todd Bosanac, John David Ginn, Eugene Richard Hickey, Thomas Martin Kirrane, JR., Weimin Liu, Anthony S. Prokopowicz, Sabine K. Schlyer, Cheng-Kon Shih, Roger John Snow, Michael Robert Turner, Frank Wu, Erick Richard Young
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Publication number: 20180338965Abstract: The invention discloses a monosubstituted or polysubstituted amphiphilic hypocrellin derivative, and a preparation method and application thereof. The amphiphilic hypocrellin derivative substituted by a group containing PEG, a quaternary ammonium salt or the like prepared according to the invention has an obvious red shift in its absorption spectrum and a significantly enhanced molar extinction coefficient, compared with the parent hypocrellin, can efficiently produce singlet state oxygen and other reactive oxygen species under photosensitive conditions; has different amphiphilicities and increased biocompatibility with cells or tissues by regulating its hydrophilicity and hydrophobicity; can meet the requirements of different clinical drugs, and solves the requirements of different drug delivery methods for different drug hydrophilicity and lipophilicity.Type: ApplicationFiled: October 21, 2016Publication date: November 29, 2018Inventors: Pengfei Wang, Jiasheng Wu, Weimin Liu, Ying Gu, Jiechao Ge, Xiuli Zheng, Hongyan Zhang
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Patent number: 10116712Abstract: Systems, methods, and instrumentalities are disclosed for managing real-time traffic video flows. A node may comprise a processor configured to receive a first real-time video traffic flow. A state variable may be associated with the first real-time video traffic flow at the node and a state variable may be associated with the second real-time video traffic flow at the node. The first real-time video traffic flow may comprises plurality of packets and each packet may comprise a lost packet indicator. The node may be configured to drop a first packet in the first real-time video traffic flow, update the state variable associated with the first real-time video traffic flow at the node to indicate the dropped packet, and update the lost packet indicator for a second packet in the first real-time video traffic flow based on the dropped packet.Type: GrantFiled: September 5, 2014Date of Patent: October 30, 2018Assignee: VID SCALE, INCInventors: Liangping Ma, Dimitrios Karampatsis, Gregory S. Sternberg, Samian Kaur, Ghyslain Pelletier, Anantharaman Balasubramanian, Robert A. DiFazio, Ralph Neff, Louis Kerofsky, Weimin Liu
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Patent number: 10038501Abstract: A visible light communication (VLC) device for lighting and data transmission is disclosed. The VLC device may comprise circuitry configured to receive a first stream of bits and determine a first switchpoint for transmitting the first stream of bits and first filler data. The VLC device may further comprise red, green, and blue (RGB) light emitting diodes (LEDs) configured to transmit the first stream of bits and the first filler data in the visible light spectrum. The first filler data may begin to be transmitted at the first switchpoint. Similar to the first stream of bits, a second stream of bits may be received and transmitted by the RGB LEDs of the VLC device. In this way, a naked eye of a human may not detect flicker of the VLC device.Type: GrantFiled: July 31, 2017Date of Patent: July 31, 2018Assignee: InterDigital Patent Holdings, Inc.Inventors: Douglas R. Castor, Samian Kaur, Weimin Liu
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Patent number: 10022925Abstract: The invention is directed to a reusable mold for making a contact lens and the reusable mold has at least one of the mold halves is made from an oxide glass having a Knoop Hardness less than HK 350. The invention is also directed to a method for making an optical part by single point diamond turning an oxide glass having a Knoop Hardness HK less than 350.Type: GrantFiled: December 18, 2014Date of Patent: July 17, 2018Assignee: Novartis AGInventors: Alice Weimin Liu, Gregory L. Herron
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Publication number: 20180169981Abstract: The invention provides a method producing contact lenses, comprising the step of: separating the mold into the male and female mold halves, with the silicone hydrogel contact lens adhered on one of the male and female mold halves; bring a shaped ultrasonic horn in direct contact with at least one area of a non-optical surface of the female mold half or the male mold half having the molded silicone hydrogel contact lens attached thereon; and applying a ultrasonic vibrational energy to the at least one area of the non-optical surface of the female mold half or the male mold half having the molded silicone hydrogel contact lens attached thereon so as to separate the molded silicone hydrogel contact lens from the mold half attached thereon.Type: ApplicationFiled: December 14, 2017Publication date: June 21, 2018Inventors: Alice Weimin Liu, Daryl Reece, Kirk Cooper, Shridhar Natarajan, John Janders, Uwe Haken, Stacey Elliott
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Patent number: 9981436Abstract: The present invention general related to a method and a reusable mold for making a contact lens, comprising a first mold half having a first mold surface in contact with a silicone containing lens forming composition and a second mold half having a second mold surface in contact with the lens forming composition. The first mold half and the second mold half are configured to receive each other such that a cavity is formed between the first mold surface and the second mold surface, wherein the cavity defines the shape of a contact lens to be molded. The lens forming composition is polymerizable and/or crosslinkable by a UV radiation, wherein at least one of the mold halves is made from an oxide glass material having a UV transmission cut-off wavelength no less than 390 nm and a specific gravity higher than 3.5.Type: GrantFiled: December 16, 2015Date of Patent: May 29, 2018Assignee: Novartis AGInventors: Alice Weimin Liu, Burkhard Dietrich
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Patent number: 9981435Abstract: The present invention general related to a method and a reusable mold for making a contact lens, comprising a first mold half having a first mold surface in contact with a silicone containing lens forming composition and a second mold half having a second mold surface in contact with the lens forming composition. The first mold half and the second mold half are configured to receive each other such that a cavity is formed between the first mold surface and the second mold surface. The cavity defines the shape of a contact lens to be molded. The lens forming composition is polymerizable and/or crosslinkable by actinic radiation. The reusable mold has at least one of the mold halves is made from chalcogenide glasses, Zinc Selenide or Zinc Sulfide.Type: GrantFiled: December 16, 2015Date of Patent: May 29, 2018Assignee: Novartis AGInventor: Alice Weimin Liu
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Patent number: 9942918Abstract: HARQ parameters (e.g., maximum HARQ retransmission values) may be adapted. Cross-layer control and/or logical channel control may be used to select a maximum number of HARQ retransmissions, for example based on packet priority and/or QCI values. Respective priorities of video packets may be used to select one of a plurality of logical channels associated with a video application that may be established at a source wireless hop and/or a destination wireless hop. The logical channels have different HARQ characteristics. Different maximum HARQ retransmission values may be determined for select logical channels, for example such that packets of different priorities may be transmitted over different logical channels. One or more of the channels may be associated with one or more transmission queues that may have different priority designations. Video packets may be reordered (e.g., with respect to transmission order) within the transmission queues, for example in accordance with respective HARQ parameters.Type: GrantFiled: February 11, 2013Date of Patent: April 10, 2018Assignee: VID SCALE, INC.Inventors: Avi Rapaport, Ariela Zeira, Weimin Liu, Liangping Ma, Yuriy Reznik, Zhifeng Chen, Gregory S. Sternberg, Samian J. Kaur, Stephen E. Terry
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Publication number: 20180056613Abstract: A method for dispensing a material into a mold for forming contact lenses, comprises the steps of: (1) providing a contact lens mold, (2) providing a dispensing needle, wherein the dispensing needle is made from a material having a surface energy less than 32 dynes/cm, (3) arranging the contact lens mold underneath the dispensing needle, (4) dispersing a fluid composition into a mold for making a contact lens, wherein the fluid composition comprises a lens-forming material, and the lens-forming material containing a solvent and is crosslinkable and/or polymerizable by thermal curing or actinic radiation.Type: ApplicationFiled: August 28, 2017Publication date: March 1, 2018Inventors: Alice Weimin Liu, Steve Crowley
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Patent number: 9894134Abstract: A method for obtaining network feedback is provided by a terminal. The method includes sending data information, publishing, by the terminal, the data information to a website, establishing a correspondence relationship between the data information and the published data information, accessing the website on which the data information is published, and obtaining feedback information to the data information, processing the data information and the feedback information, and informing a user of an updating status of the feedback information. The embodiment of the present disclosure further provides a terminal device for obtaining the network feedback.Type: GrantFiled: April 3, 2014Date of Patent: February 13, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Weimin Liu, Qingli Zhang
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Patent number: 9864108Abstract: The present invention general related to a reusable mold for making a contact lens comprises a first mold half having a first mold surface in contact with a polymerizable and/or crosslinkable silicone containing lens forming composition and a second mold half having a second mold surface in contact with the lens-forming composition, and the first mold half and the second mold half are configured to receive each other such that a cavity is formed between the first mold surface and the second mold surface. The cavity defines the shape of a contact lens to be molded. The reusable mold has at least one of the mold halves being made from an oxide glass comprising fluorine and/or fluoride. The mold made by oxide glass comprising fluorine and/or fluoride demonstrates improving mold cleanability with water based cleaning process.Type: GrantFiled: December 18, 2014Date of Patent: January 9, 2018Assignee: Norvartis AGInventors: Alice Weimin Liu, Burkhard Dietrich
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Publication number: 20170374654Abstract: Embodiments contemplate devices and techniques for receiving unicast and multicast transmissions over a downlink (DL) shared channel in parallel, for example an LTE DL shared channel (SCH). For example, one or more hybrid automatic repeat request (HARQ) entities may be configured to perform retransmissions of the multicast and/or unicast messages. Common and/or dedicated (e.g., separate) HARQ entities may be utilized for retransmission. The multicast downlink shared channels may be activated and/or deactivated on demand. The activation and/or deactivation may be performed using radio resource control (RRC) signaling and/or Medium Access Control (MAC) signaling. The multicast and/or unicast downlink shared channel data may include scalable video coding (SVC) data of varying priority. Embodiments also contemplate the use of simultaneous (e.g. parallel) multicast/unicast for scalable video coding transmission over WiFi/802.11 protocol signals.Type: ApplicationFiled: August 21, 2017Publication date: December 28, 2017Applicant: VID SCALE, INC.Inventors: Avi Rapaport, Samian Kaur, Liangping Ma, Weimin Liu, Ariela Zeira, Zhifeng Chen, Stephen E. Terry
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Publication number: 20170331552Abstract: A visible light communication (VLC) device for lighting and data transmission is disclosed. The VLC device may comprise circuitry configured to receive a first stream of bits and determine a first switchpoint for transmitting the first stream of bits and first filler data. The VLC device may further comprise red, green, and blue (RGB) light emitting diodes (LEDs) configured to transmit the first stream of bits and the first filler data in the visible light spectrum. The first filler data may begin to be transmitted at the first switchpoint. Similar to the first stream of bits, a second stream of bits may be received and transmitted by the RGB LEDs of the VLC device. In this way, a naked eye of a human may not detect flicker of the VLC device.Type: ApplicationFiled: July 31, 2017Publication date: November 16, 2017Applicant: InterDigital Patent Holdings, Inc.Inventors: Douglas R. Castor, Samian Kaur, Weimin Liu
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Patent number: 9807644Abstract: Methods, apparatuses and systems for performing hierarchical traffic differentiation and/or employing hierarchical traffic differentiation are provided. These methods, apparatuses and systems may be implemented to, for example, handle congestion and/or to manage user quality of experience (QoE). Performing the hierarchical traffic differentiation may include differentiating or otherwise classifying (collectively “differentiating”) traffic mapped to, or within, a bearer formed in accordance with a QoS class into multiple traffic sub-classes. Employing the hierarchical traffic differentiation may include scheduling and/or policing (e.g., filtering) the differentiated traffic for transmission based on a prioritization of, and/or policy for managing, the multiple traffic sub-classes.Type: GrantFiled: February 16, 2013Date of Patent: October 31, 2017Assignee: InterDigital Patent Holdings, Inc.Inventors: Liangping Ma, Samian Kaur, Dimitrios Karampatsis, Avi Rapaport, Gregory Sternberg, Yuriy Reznik, Ariela Zeira, Weimin Liu, Naresh Soni
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Patent number: 9769819Abstract: Embodiments contemplate devices and techniques for receiving unicast and multicast transmissions over a downlink (DL) shared channel in parallel, for example an LTE DL shared channel (SCH). For example, one or more hybrid automatic repeat request (HARQ) entities may be configured to perform retransmissions of the multicast and/or unicast messages. Common and/or dedicated (e.g., separate) HARQ entities may be utilized for retransmission. The multicast downlink shared channels may be activated and/or deactivated on demand. The activation and/or deactivation may be performed using radio resource control (RRC) signaling and/or Medium Access Control (MAC) signaling. The multicast and/or unicast downlink shared channel data may include scalable video coding (SVC) data of varying priority. Embodiments also contemplate the use of simultaneous (e.g. parallel) multicast/unicast for scalable video coding transmission over WiFi/802.11 protocol signals.Type: GrantFiled: February 29, 2016Date of Patent: September 19, 2017Assignee: VID SCALE, INC.Inventors: Avi Rapaport, Samian Kaur, Liangping Ma, Weimin Liu, Ariela Zeira, Zhifeng Chen, Stephen E. Terry