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For the Inventor, By the Inventor

The Woodlands, TX, United States of America

Zhehua Zhang

This inventor holds 5 USPTO granted patents and 4 published patent applications. Top assignee: Smith International, Inc.. Active years: 2014-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Zhehua Zhang. Retrieved from https://idiyas.com/inventor/zhehua-zhang

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

USPTO Granted Patents = 5 

% Patents Active = 60.0

Average Co-Inventor Count = 1.9

ph-index = 3

Forward Citations = 22(Granted Patents)


Company Filing History:

goldMedal5 out of 1,426 
 
Smith International, Inc.
 patents

Years Active: 2014-2017

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5 patents (USPTO):Explore Patents
1. 9850717 - Methods for designing fixed cutter bits and bits made using such methods (2017-12-26),
2. 9574405 - Hybrid disc bit with optimized PDC cutter placement (2017-02-21),
3. 9033069 - High-shear roller cone and PDC hybrid bit (2015-05-19),
4. 8955413 - Manufacturing methods for high shear roller cone bits (2015-02-17),
5. 8672060 - High shear roller cone drill bits (2014-03-18),

Title: Innovations of Zhehua Zhang in Drill Bit Technology

Introduction

Zhehua Zhang is a prominent inventor based in The Woodlands, TX (US). He has made significant contributions to the field of drilling technology, particularly in the design and optimization of fixed cutter bits. With a total of 5 patents to his name, Zhang's work has advanced the efficiency and effectiveness of drilling operations.

Latest Patents

Zhehua Zhang's latest patents include innovative methods for designing fixed cutter bits. One notable patent describes a method for analyzing a fixed cutter drill bit. This method involves selecting a cutter, choosing an earth formation, simulating the drilling performance of the fixed cutter bit, performing finite element analysis, and outputting stress on the cutter. Another significant invention is a hybrid disc bit with optimized PDC cutter placement. This invention features an improved drill bit design that includes a bit body, a journal, and a disc with PDC cutting elements, enhancing the cutting structure of the drill bit.

Career Highlights

Zhehua Zhang is currently employed at Smith International, Inc., where he continues to innovate in the drilling technology sector. His work has been instrumental in developing advanced drilling solutions that meet the demands of modern engineering challenges.

Collaborations

Zhehua Zhang has collaborated with notable colleagues such as Prabhakaran K Centala and Peter Thomas Cariveau. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Zhehua Zhang's contributions to drill bit technology exemplify the impact of innovation in the field of engineering. His patents and collaborative efforts continue to shape the future of drilling operations, making significant strides in efficiency and performance.

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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