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Patents Grants
last 30 patents
Information
Patent Grant
Circular stapler with audible indicator
Patent number
12,004,748
Issue date
Jun 11, 2024
Touchstone International Medical Science Co., Ltd.
Zhi Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Knob assembly and circular stapler
Patent number
11,877,749
Issue date
Jan 23, 2024
Touchstone International Medical Science Co., Ltd.
Zhi Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Handle assembly and stapler including the same
Patent number
11,471,160
Issue date
Oct 18, 2022
Touchstone International Medical Science Co., Ltd.
Zhi Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Handle assembly and stapler including the same
Patent number
11,399,864
Issue date
Aug 2, 2022
Touchstone International Medical Science Co., Ltd.
Zhi Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Handle assembly and stapler including the same
Patent number
11,364,031
Issue date
Jun 21, 2022
Touchstone International Medical Science Co., Ltd.
Wangdong Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Handle assembly and stapler including the same
Patent number
11,350,941
Issue date
Jun 7, 2022
Touchstone International Medical Science Co., Ltd.
Zhi Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Handle assembly and stapler including the same
Patent number
11,337,703
Issue date
May 24, 2022
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Zhi Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Handle assembly and stapler including the same
Patent number
11,179,158
Issue date
Nov 23, 2021
Touchstone International Medical Science Co., Ltd.
Zhi Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Tissue closure device, tissue closure component, and medical instru...
Patent number
10,835,244
Issue date
Nov 17, 2020
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Wangdong Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Circular stapler with an automatic safety mechanism
Patent number
7,900,806
Issue date
Mar 8, 2011
Suzhou Touchstone International Medical Science Co., Ltd
Wang-dong Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Rotatable stapling head of a surgical stapler
Patent number
7,770,776
Issue date
Aug 10, 2010
Suzhou Touchstone International Medical Science Co., Ltd
Wang-dong Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
KNOB ASSEMBLY AND CIRCULAR STAPLER
Publication number
20220054135
Publication date
Feb 24, 2022
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Zhi CHEN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
CIRCULAR STAPLER
Publication number
20220031329
Publication date
Feb 3, 2022
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Zhi CHEN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
HANDLE ASSEMBLY AND STAPLER INCLUDING THE SAME
Publication number
20210059678
Publication date
Mar 4, 2021
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Zhi CHEN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
HANDLE ASSEMBLY AND STAPLER INCLUDING THE SAME
Publication number
20200390445
Publication date
Dec 17, 2020
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Zhi CHEN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
HANDLE ASSEMBLY AND STAPLER INCLUDING THE SAME
Publication number
20200345372
Publication date
Nov 5, 2020
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Wangdong CHEN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
HANDLE ASSEMBLY AND STAPLER INCLUDING THE SAME
Publication number
20200330119
Publication date
Oct 22, 2020
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Zhi CHEN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
HANDLE ASSEMBLY AND STAPLER INCLUDING THE SAME
Publication number
20200323532
Publication date
Oct 15, 2020
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Zhi CHEN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
HANDLE ASSEMBLY AND STAPLER INCLUDING THE SAME
Publication number
20200315628
Publication date
Oct 8, 2020
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Zhi CHEN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
TISSUE CLOSURE DEVICE, TISSUE CLOSURE COMPONENT, AND MEDICAL INSTRU...
Publication number
20200155148
Publication date
May 21, 2020
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD.
Wangdong Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
A CIRCULAR STAPLER WITH AN AUTOMATIC SAFETY MECHANISM
Publication number
20100059571
Publication date
Mar 11, 2010
Suzhou Touchstone International Medical Science Co LTD.
Wang-dong CHEN
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
Rotatable Stapling Head Of A Surgical Stapler
Publication number
20090001127
Publication date
Jan 1, 2009
Wang-dong Chen
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE