Province, China

Mingquan Cai

This inventor holds 2 USPTO granted patents. Top assignees: Shandong Weida Machine Tool Tools Group Corporation, Shandong Weida Machinery Company Limited. Active years: 2001-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mingquan Cai. Retrieved from https://idiyas.com/inventor/mingquan-cai

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 2

Forward Citations = 17(Granted Patents)


Location History:

  • Wendeng, CN (2001)
  • Shandong Province, CN (2007)

Company Filing History:


Years Active: 2001-2007

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2 patents (USPTO):Explore Patents

Title: **Innovative Contributions of Mingquan Cai in Tool Engineering**

Introduction

Mingquan Cai, an accomplished inventor based in Shandong Province, China, has made significant contributions to the field of tool engineering. With a portfolio of 2 patents, his inventions focus on enhancing the efficiency and reliability of drill chucks, which are essential components in various drilling applications.

Latest Patents

Mingquan Cai's latest innovations include two noteworthy patents:

1. **Locking Drill Chuck** - This invention features a chuck designed for use with both manual and powered drivers. The chuck body incorporates jaws, a nut, and several other components that form a sophisticated thread driving mechanism. Notably, the chuck includes a locking mechanism that prevents looseness caused by vibrations or impacts during usage, ensuring consistent performance.

2. **Manual Tightened Chuck** - In this patent, the manual tightening mechanism is emphasized. The design incorporates a separated nut fixed in a recess at the front sleeve, which allows for synchronized movement of the jaws within the chuck body. Featuring a thrust ball bearing and a spring, this innovation provides efficient gripping force after the jaws make contact with the drill bit.

Career Highlights

Mingquan Cai has cemented his status as a leading inventor by working with renowned companies in the industry, including Shandong Weida Machinery Company Limited and Shandong Weida Machine Tool Tools Group Corporation. His expertise in tool design and engineering has significantly influenced the development of more effective drilling tools.

Collaborations

Throughout his career, Mingquan has collaborated with esteemed colleagues, including Guimo Yang and Shengzhi Yang. These collaborations have fostered an environment of innovation, allowing for the exchange of ideas and the advancement of new technologies within the field.

Conclusion

Mingquan Cai's inventive spirit and dedication to improving tool engineering have resulted in groundbreaking patents that address critical challenges in drilling applications. As he continues to innovate, his work has the potential to inspire future advancements in the industry, solidifying his legacy as an influential inventor in the field.

Profile summary based on public USPTO records.
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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