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De Poan Pneumatic Corp.

USPTO Granted Patents = 58

% Expired Patents = 60.3

Forward Citations = 736

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36 inventors (with patents filed for the assignee):

Chia-Sheng Liang (19 out of 28 patents)

I-Tsung Wu (15 out of 20 patents)

Wan-Fu Wen (11 out of 12 patents)

4. Yun-Chung Lee (6 out of 17 patents)

5. Zhen-Liang Liao (4 out of 4 patents)

6. Yi-Wei Wen (3 out of 3 patents)

7. Hai-Lun Ma (3 out of 3 patents)

8. Chu Hsiang Tseng (3 out of 3 patents)

9. Po-Feng Huang (3 out of 4 patents)

10. Wen-Chin Chen (3 out of 5 patents)

11. Yu-Che Lin (3 out of 3 patents)

12. Ying-Chieh Liu (3 out of 3 patents)

13. Shun-Yao Yang (2 out of 2 patents)

14. Marco Laubach (2 out of 14 patents)

15. Chu-Hsiang Tseng (2 out of 4 patents)

Core Competencies:

Nail Gun

Pneumatic Tool

Trigger Valve

Driving Mechanism

Air-Supply Control

Nail Positioning

Brake Device

Fastener Driving Tool

Rotary Drive Assembly

Clutch Mechanism

Magazine Assembly

Safety Trigger

58 patents: Sort by Forward Citations

1. 12521858 - Swinging brake of electric nail gun (2026-01-13),

2. 12515304 - Return transmission of nailing rod for electric nail gun (2026-01-06),

3. 12508699 - Rotary drive assembly of an electric nail gun (2025-12-30),

4. 12186932 - Internal rotor type nail drive device of electric nail gun (2025-01-07),

5. 12036651 - Nail drive method of electric nail gun (2024-07-16),

6. 11801588 - Pneumatic hand tool with adjustable operating angle (2023-10-31),

7. 11759931 - Nail drive device of electric nail gun (2023-09-19),

8. 11583986 - Air-path structure of pneumatic nail gun (2023-02-21),

9. 10626725 - Gas passage switching structure for pneumatic rotary hand tool (2020-04-21),

10. 10421174 - Pneumatic rotary tool with air-supply control assembly (2019-09-24),

11. 10016884 - Pneumatic nail gun capable of striking nails in automatic mode (2018-07-10),

12. 8991675 - Dynamic clutch apparatus for electrical nail gun (2015-03-31),

13. 8684246 - Driving device for resetting hitting nail bar of pneumatic nail gun (2014-04-01),

14. 8646672 - Nail positioning member of nail slot of nail gun (2014-02-11),

15. 8567654 - Locking mechanism of nail gun (2013-10-29),

Company Overview

De Poan Pneumatic Corp., based in Taipei, Taiwan, specializes in the development and manufacturing of pneumatic nail guns and related tools. The company focuses on advanced technologies such as trigger valves, driving mechanisms, and air-supply control systems, which enhance the efficiency and precision of fastener driving applications. With a commitment to innovation, De Poan aims to provide high-quality pneumatic solutions that meet the diverse needs of the construction and manufacturing industries.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

58 Patents

#66 in Taipei

#362 in Taiwan

#12,395 in the World

De Poan Pneumatic Corp.

Forward Citations = 736

36 inventors:

Chia-Sheng Liang (19 out of 28 patents)

I-Tsung Wu (15 out of 20 patents)

Wan-Fu Wen (11 out of 12 patents)

4. Yun-Chung Lee (6 out of 17 patents)

5. Zhen-Liang Liao (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: De Poan Pneumatic Corp.. Retrieved from https://idiyas.com/company/de-poan-pneumatic

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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