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For the Inventor, By the Inventor

Memphis, TN, United States of America

Susan L H Crenshaw

This inventor holds 4 USPTO granted patents. Top assignees: Bki Holding Corporation, Buckeye Technologies Inc.. Active years: 2001-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Susan L H Crenshaw. Retrieved from https://idiyas.com/inventor/susan-l-h-crenshaw

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 3

Forward Citations = 193(Granted Patents)


Company Filing History:

goldMedal3 out of 32 
 
Bki Holding Corporation
 patents
silverMedal1 out of 18 
 
Buckeye Technologies Inc.
 patents

Years Active: 2001-2006

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4 patents (USPTO):Explore Patents
1. 7022837 - Cellulose ethers and method of preparing the same (2006-04-04),
2. 6686464 - Cellulose ethers and method of preparing the same (2004-02-03),
3. 6488809 - Resin-treated mercerized fibers and products thereof (2002-12-03),
4. 6171441 - Resin-treated mercerized fibers and products thereof (2001-01-09),

Title: Susan L H Crenshaw: Innovator in Cellulose Ethers

Introduction

Susan L H Crenshaw is a notable inventor based in Memphis, TN (US). She has made significant contributions to the field of cellulose ethers, holding a total of four patents. Her innovative work has advanced the understanding and preparation methods of cellulose ethers derived from cellulose pulp.

Latest Patents

One of her latest patents focuses on the preparation of cellulose ethers and the methods involved. The invention reveals that the solution rheology of cellulose ethers can be altered by mercerizing and recovering cellulose pulp prior to their preparation. For instance, the solution viscosity of carboxymethyl cellulose (CMC) produced from mercerized and recovered cellulose pulp is significantly greater than that produced from non-mercerized cellulose pulp. The method includes obtaining mercerized and recovered cellulose pulp and converting it into cellulose ethers. The mercerized cellulose pulp is typically free of cellulose III and has a higher percentage of crystalline cellulose II. Additionally, her invention provides a method for preparing cellulose floc, which also benefits from the mercerization process, resulting in a greater bulk density compared to floc made from non-mercerized cellulose pulp.

Career Highlights

Throughout her career, Susan has worked with prominent companies such as BKI Holding Corporation and Buckeye Technologies Inc. Her experience in these organizations has contributed to her expertise in cellulose chemistry and innovation.

Collaborations

Susan has collaborated with notable individuals in her field, including Roger Bruce Harding and Paul Eugene Gregory. These partnerships have likely enhanced her research and development efforts in cellulose ethers.

Conclusion

Susan L H Crenshaw's work in cellulose ethers exemplifies her innovative spirit and dedication to advancing material science. Her patents reflect her significant contributions to the industry and her commitment to improving cellulose processing methods.

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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