Patents by Inventor Wen-Ho Tsai

Wen-Ho Tsai 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: 11939431
    Abstract: The present invention relates to a composition comprising an amino acid-modified polymer, a carboxypolysaccharide, and may further include a metal ion for anti-adhesion and vector application. More specifically, the invention relates to a thermosensitive composition having enhanced mechanical and improved water-erosion resistant properties for efficiently preventing tissue adhesions and can serve as a vector with bio-compatible, bio-degradable/absorbable, and in-vivo sustainable properties.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: March 26, 2024
    Assignee: PROVIEW-MBD BIOTECH CO., LTD.
    Inventors: Yu-Chia Chang, Yunn-Kuen Chang, Wen-Yen Huang, Ging-Ho Hsiue, Hsieh-Chih Tsai, Shuian-Yin Lin, Nai-Sheng Hsu, Tzu-Yu Lin
  • Patent number: 11939432
    Abstract: Synthetic amino acid-modified polymers and methods of making the same and using the same are disclosed. The synthetic amino acid-modified polymers possess distinct thermosensitive, improved water-erosion resistant, and enhanced mechanical properties, and are suitable of reducing or preventing formation of postoperative tissue adhesions. Additionally, the amino acid-modified polymers can also be used as a vector to deliver pharmaceutically active agents.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: March 26, 2024
    Assignee: PROVIEW-MBD BIOTECH CO., LTD.
    Inventors: Yu-Chia Chang, Yunn-Kuen Chang, Wen-Yen Huang, Ging-Ho Hsiue, Hsieh-Chih Tsai, Shuian-Yin Lin, Nai-Sheng Hsu, Tzu-Yu Lin
  • Patent number: 10358844
    Abstract: An anti-reverse sealing lock includes a transparent housing having a passage with an opening in a top side of the transparent housing. A locking block is mounted in the passage and includes a locking ring and an anti-reverse member mounted in the passage. The locking ring includes a locking ring hole having an inclined groove receiving a C-shaped ring. The anti-reverse member includes a through-hole. A latch rod includes an insertion section having a first stepped groove and a second stepped groove. The latch rod extends through the opening, the locking ring hole, and the through-hole. The C-shaped ring is retained in the first stepped groove. A peripheral edge of the through-hole at an end of the anti-reverse member abuts against an end wall of the second stepped groove when the latch rod moves in a removal direction, preventing removal of the latch rod.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: July 23, 2019
    Inventor: Wen Ho Tsai
  • Publication number: 20190032375
    Abstract: An anti-reverse sealing lock includes a transparent housing having a passage with an opening in a top side of the transparent housing. A locking block is mounted in the passage and includes a locking ring and an anti-reverse member mounted in the passage. The locking ring includes a locking ring hole having an inclined groove receiving a C-shaped ring. The anti-reverse member includes a through-hole. A latch rod includes an insertion section having a first stepped groove and a second stepped groove. The latch rod extends through the opening, the locking ring hole, and the through-hole. The C-shaped ring is retained in the first stepped groove. A peripheral edge of the through-hole at an end of the anti-reverse member abuts against an end wall of the second stepped groove when the latch rod moves in a removal direction, preventing removal of the latch rod.
    Type: Application
    Filed: December 8, 2017
    Publication date: January 31, 2019
    Inventor: WEN HO TSAI
  • Publication number: 20120187701
    Abstract: A seal-lock with destruction-identifying structure includes a body having an opening in communication with an interior of the body. The seal-lock further includes a bolt having a shank. The shank and the body are so configured that coupling of the shank and the body is easy but disengagement of the shank from the body after coupling of the shank and the body is difficult. The bolt includes a head on a top end of the shank. The head has a diameter larger than a diameter of the shank. A transparent protective cover is mounted around the head and the shank. The shank can include a tag or pattern formed on an outer periphery of the shank. The tag or pattern is selected from a group consisting of letters, figures, symbols, and numbers. The tag or pattern is exposed out of the body after the shank is coupled with the body.
    Type: Application
    Filed: November 23, 2011
    Publication date: July 26, 2012
    Inventor: WEN-HO TSAI
  • Patent number: 6152801
    Abstract: A toy car structure in which a power source such as a motor is activated to drive a gear set for driving decorative car doors, engine hood and car light cover bodies of a car body to open or close so as to create versatile operation.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: November 28, 2000
    Inventor: Wen-Ho Tsai
  • Patent number: 6000988
    Abstract: A fighting UFO toy car in which a power source such as a motor is used to drive a gear set which further drives a cam of a driving shaft to rotate and make a UFO model ascend and show up outside the toy car. The driving shaft synchronously drives guide members on two outer sides of the casing to rotate. The guide members drive two rocking arms to regularly swing to drive a resilient linking member which further drives a lifting support shaft to vertically move. Accordingly, two wings disposed on two sides of the toy car body are stretched and retracted. The gear set drives a rotary disc of a driving shaft to rotate, whereby a cam of the rotary disc drives a guide board to regularly slide back and forth. By means of such arrangements, multiple sets of decorations mounted on outer side of the toy car body are lively repeatedly operated to achieve an entertaining effect.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: December 14, 1999
    Inventor: Wen-Ho Tsai
  • Patent number: 5862703
    Abstract: A transmission mechanism for an outward turning wheel set of a toy car, including a casing and a gear set, wherein the gear set is received in the casing and driven by a motor to rotate a cam. The cam is driven to forcedly swing a cantilever between a first and a second position. The cantilever has a free end connected with a pressing lever. When the cantilever is swung to the second position, an elevating seat, a board member and a slide block are pressed downward, whereby when the car body is lifted, a linkage and multiple elbow joints forcedly turn the car wheels outward.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: January 26, 1999
    Inventor: Wen-Ho Tsai
  • Patent number: 5807158
    Abstract: A toy car structure with various combined operations, including a housing defining an internal chamber and a driving system disposed in the chamber. The driving system including a transmission wheel and a driven wheel driven by a power source. A disc member is coaxially disposed with the driven wheel and rotatable along with the driven wheel. The disc member has an upper and a lower layers respectively disposed with a shifting section and a shifting pin for pushing a cantilever and a trigger. The cantilever and the trigger further respectively drive a retaining member and a slide board to move from a first position toward a second positions so as to create various combined operations.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: September 15, 1998
    Inventor: Wen-Ho Tsai
  • Patent number: 5766056
    Abstract: A transmission structure of toy fire engine including a casing in which a power source is disposed and connected to a driving shaft for rotating two cams disposed in the casing and two cams disposed outside the casing. The outer cams serve to drive two lateral slide members to slide and push two decorative members pivotally disposed on two sides of the casing to pivot outward. One of the inner cams via a support rod abuts against a linkage set to drive a scaling ladder to pivot upward from the casing or downward to the casing. When the scaling ladder is pivoted to an upright position, a movable doll is driven to climb up along the scaling ladder. The other of the inner cams pushes a pushing slide member to depress a pushing shaft of a rotary power wheel set, making the rotary power wheel set descend and touch the ground for driving the toy fire engine to running.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: June 16, 1998
    Inventor: Wen Ho Tsai
  • Patent number: 5735727
    Abstract: A transmission mechanism of a toy car, including a housing in which a power source is disposed. The power source is drivingly connected to a first and a second cams via a gear set. A slidable pressing/pushing slide board and a driving slide board are respectively pushed by the first and second cams to slide. The driving slide board further drives a linkage set to upward pivot a movable casing cover open or close the movable casing cover. A decorative body is disposed on inner side of the movable casing cover, whereby when the movable casing cover is upward opened, the decorative body is exhibited to create a visual entertaining effect. The pressing/pushing slide board can depress a rotary power wheel set and make the same descend and contact with the ground, enabling the toy car to run over the ground and create a live versatile entertaining effect.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: April 7, 1998
    Inventor: Wen Ho Tsai
  • Patent number: 5733169
    Abstract: A toy airplane with rotary decorative bodies, which includes a motor for driving a gear set. The gear set in turn drives a rotary power wheel set and two opposite cams to rotate. Each cam is formed with a guiding groove along its periphery for guiding a rocking arm to regularly swing therewithin. The rocking arm further drives a resilient linking member which drives an ascending/descending support shaft to move up and down for pushing a rotary shaft and changing the engagement state between a gear disposed at middle section thereof and the gear set, whereby the rotary shaft is rotated in cooperation with the ascending/descending of the ascending/descending support shaft so as to drive the decorative body disposed at the end portion of the rotary shaft to rotate and create an entertaining effect.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: March 31, 1998
    Inventor: Wen Ho Tsai
  • Patent number: D437368
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: February 6, 2001
    Inventor: Wen-Ho Tsai
  • Patent number: D453361
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: February 5, 2002
    Inventor: Wen-Ho Tsai
  • Patent number: D469828
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: February 4, 2003
    Inventor: Wen-Ho Tsai
  • Patent number: D421279
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: February 29, 2000
    Inventor: Wen-Ho Tsai
  • Patent number: D433466
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: November 7, 2000
    Inventor: Wen-Ho Tsai
  • Patent number: D433467
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: November 7, 2000
    Inventor: Wen-Ho Tsai