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For the Inventor, By the Inventor

Taiwan, China

Welcome Company, Ltd.


USPTO Granted Patents = 27

% Expired Patents = 11.1


Trademarks = 6

Forward Citations = 1,247

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6 inventors (with patents filed for the assignee):

goldMedal Richard Chang (22 out of 44 patents)

silverMedal Ammy Chou (10 out of 12 patents)

bronzeMedal Shu Hui Chou (7 out of 9 patents)

4.  Mario Bernardo Accumanno (1 out of 9 patents)

5.  Shu-Hui Chou (1 out of 1 patent)

6.  Heng G Fang (1 out of 1 patent)


Core Competencies:
Portable Air Extracting Device
Battery-Type Vacuum-Pumping Device
Double-End Sealer
Electric Heat Sealer
Rechargeable Sealer
Safety Device
Hand-Held Electric Sealer
Sealing Module
Table-Top Electric Sealer
Safety Cutting Device
Hand-Held Staple Gun
Electric Heat Pen

27 patents:

1. 10683115 - Portable air extracting device (2020-06-16),
2. D860277 - Battery-type vacuum-pumping device (2019-09-17),
3. D845370 - Double-end sealer (2019-04-09),
4. D823914 - Sealing and vacuum-pumping device (2018-07-24),
5. D823913 - Sealer (2018-07-24),
6. 9937661 - Storage electric sealer (2018-04-10),
7. D812662 - Sealer (2018-03-13),
8. 9809340 - Rechargeable sealer with storage function (2017-11-07),
9. 7700897 - Hand-held electric sealer having a detachable electric sealing module (2010-04-20),
10. 7464845 - Hand-held staple gun having a safety device (2008-12-16),
11. 7315010 - Electric heat sealer with safety device (2008-01-01),
12. 7291810 - Hand-held electric heat sealer (2007-11-06),
13. 7034252 - Hand-held electric heat sealer (2006-04-25),
14. 6998577 - Table-top electric heat sealer (2006-02-14),
15. 6919537 - Electric heat sealer (2005-07-19),
Company Overview
Welcome Company, Ltd. is a prominent player in the manufacturing sector based in Taiwan, specializing in a diverse range of products and solutions. The company focuses on developing innovative technologies and high-quality manufacturing processes, particularly in the fields of consumer electronics and industrial equipment. With a commitment to research and development, Welcome Company aims to enhance its product offerings and maintain a competitive edge in the global market, catering to various industries and customer needs.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Welcome Company, Ltd. USPTO Patent Assignee Logo
27 Patents

#1 in Taiwan

#1,122 in China

#24,012 in the World

Taiwan, CN
Taiwan, China

Welcome Company, Ltd.

Forward Citations = 1,247

6 inventors:

goldMedal Richard Chang (22 out of 44 patents)

silverMedal Ammy Chou (10 out of 12 patents)

bronzeMedal Shu Hui Chou (7 out of 9 patents)

4.  Mario Bernardo Accumanno (1 out of 9 patents)

5.  Shu-Hui Chou (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Welcome Company, Ltd.. Retrieved from https://idiyas.com/company/welcome-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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