Bend, OR, United States of America

Ping H Sih

This inventor holds 1 USPTO granted patent. Top assignee: Zeneca Limited. Active years: 1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ping H Sih. Retrieved from https://idiyas.com/inventor/ping-h-sih

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 = 4.0

ph-index = 1


Company Filing History:


Years Active: 1998

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1 patent (USPTO):Explore Patents

Title: Ping H. Sih: Patent Inventor in Bend, Oregon

Introduction

Ping H. Sih is an inventor associated with Bend, Oregon, and Zeneca Limited. His listed patent concerns the production of aromatic azomethines and alpha-haloacetanilides.

Latest Patents

Sih is credited with 1 patent: “Process for the Production of Azomethines and Alpha-Haloacetanilides.” The process continuously reacts an aniline with a formaldehyde source while evaporating residual water from the reaction. The resulting azomethine may then be reacted with a haloacetylating agent, either continuously or in a batch process, and may also be reacted with an aliphatic alcohol.

Career Highlights

The available information connects Sih’s patent work with Zeneca Limited. His listed invention focuses on a process for producing chemical compounds through controlled reaction and water removal.

Collaborations

Kambiz Javdani and Gilbert Rodriguez are identified as some of Sih’s coworkers. The provided information does not specify their roles in the patent or the invention.

Conclusion

Ping H. Sih’s listed patent documents a chemical production process developed in connection with his work at Zeneca Limited.

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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