For the Inventor, By the Inventor

Enter assignee name

Hsinchu, Taiwan

Waltop International Corporation

USPTO Granted Patents = 58

Trademarks = 5

Forward Citations = 153

Loading Chart...

Loading Chart...

47 inventors (with patents filed for the assignee):

Chia-Jui Yeh (21 out of 32 patents)

Yi-Chih Chang (8 out of 8 patents)

Chung-Fuu Mao (5 out of 5 patents)

4. Chung-Wen Hsu (5 out of 9 patents)

5. A-Li Wong (4 out of 6 patents)

6. Yun-Hsiang Yeh (4 out of 17 patents)

7. Chien-Chia Lien (4 out of 4 patents)

8. Wei-Chou Chen (4 out of 19 patents)

9. Ying Hwa Tang (3 out of 3 patents)

10. Chia-Te Huang (3 out of 3 patents)

11. Ying-Hwa Tang (2 out of 2 patents)

12. Hsin-Chiang Ho (2 out of 2 patents)

13. Yu Chiehmr Ho (2 out of 2 patents)

14. Chung Fuu Mao (2 out of 2 patents)

15. Chia Jui Yeh (2 out of 2 patents)

Core Competencies:

Capacitive Stylus

Electromagnetic Pointer

Touch Input Device

Handwriting Input Apparatus

Signal Decoding

Tilt Angle Detection

Rechargeable Stylus

Portable Electronic Device

Inductive Loops

Magnetic Attractive Stylus

Active Capacitive Touch Pen

Core Disassembling Device

58 patents: Sort by Forward Citations

1. 11042231 - Stylus structure for transmitting a color signal (2021-06-22),

2. 11023057 - Stylus structure having a barrier unit for contacting with a trigger component (2021-06-01),

3. 10895930 - Message erasing device and message erasing system (2021-01-19),

4. 10613647 - Portable electronic device and stylus thereof (2020-04-07),

5. 10599272 - Portable electronic device and active capacitive stylus thereof (2020-03-24),

6. 10564737 - Capacitive stylus with eraser (2020-02-18),

7. 10429956 - Capacitive stylus with detachable eraser (2019-10-01),

8. 10386944 - Capacitive stylus providing signals for tilt and orientation detection (2019-08-20),

9. 10082895 - Capacitive stylus and touch control apparatus applying synchronized time difference signal transmitting method (2018-09-25),

10. 10082894 - Synchronized time difference signal transmitting method and capacitive stylus as well as touch input apparatus applying this method (2018-09-25),

11. 10042444 - Capacitive stylus with two transmit electrodes (2018-08-07),

12. 9983698 - Capacitive stylus signal transmitting and application method and capacitive stylus applying this method (2018-05-29),

13. 9965060 - Capacitive stylus and tilt angle detecting method thereof (2018-05-08),

14. 9766687 - Capacitive stylus with power saving apparatus (2017-09-19),

15. 9751200 - Core disassembling device (2017-09-05),

WALTOP INTERNATIONAL CORPORATION is a global leader in manufacturing innovative input devices and interactive solutions. With nearly three decades of experience, WALTOP has established a strong reputation for providing high-quality products and exceptional customer service. Our extensive product range includes graphic tablets, digital pens, interactive whiteboards, and touch screen monitors. We serve various industries ranging from graphic design, digital art, education, healthcare, and more. By combining advanced technology with user-friendly designs, we strive to enhance creativity, productivity, and collaboration in the digital world.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

58 Patents

#55 in Hsinchu

#348 in Taiwan

#11,980 in the World

Hsinchu, Taiwan

Waltop International Corporation

Forward Citations = 153

47 inventors:

Chia-Jui Yeh (21 out of 32 patents)

Yi-Chih Chang (8 out of 8 patents)

Chung-Fuu Mao (5 out of 5 patents)

4. Chung-Wen Hsu (5 out of 9 patents)

5. A-Li Wong (4 out of 6 patents)

Please report any incorrect information to support@idiyas.com

Loading…