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For the Inventor, By the Inventor

Macon, GA, United States of America

John M Harrison

This inventor holds 10 USPTO granted patents. Top assignees: J.m. Huber Corporation, Other. Active years: 1984-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John M Harrison. Retrieved from https://idiyas.com/inventor/john-m-harrison-yffx9bw8

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 8

Forward Citations = 359(Granted Patents)


Location History:

  • Concord, NH (US) (1984 - 1992)
  • Macon, GA (US) (1990 - 1993)
  • Dry Branch, GA (US) (1992 - 1998)
  • Twiggs, CO (US) (2000)

Company Filing History:

goldMedal7 out of 356 
 
J.m. Huber Corporation
 patents
silverMedal3 out of 834,513 
Other
 patents

Years Active: 1984-2000

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10 patents (USPTO):Explore Patents
1. 6143065 - Precipitated calcium carbonate product having improved brightness and (2000-11-07),
2. 5846309 - Coarse particle size kaolin clay and method (1998-12-08),
3. 5534057 - Process for treating kaolin clays for pitch control and the treated clays (1996-07-09),
4. 5180511 - Flotation aid and process for removal of impurities from silicate (1993-01-19),
5. 5167707 - High performance coarse particle size SAMS pigments for paint and (1992-12-01),
6. 5144553 - Electronic vehicle toll collection system and method (1992-09-01),
7. 5086389 - Automatic toll processing apparatus (1992-02-04),
8. 5037534 - Flotation aid and process for removal of impurities from silicate (1991-08-06),
9. 4940534 - Froth flotation column (1990-07-10),
10. 4461927 - Automatic dialing and alarm system (1984-07-24),

Title: Innovations of John M Harrison

Introduction

John M Harrison is a notable inventor based in Macon, GA (US), recognized for his contributions to the field of materials science. He holds a total of 10 patents, showcasing his innovative spirit and dedication to advancing technology.

Latest Patents

Among his latest patents is a precipitated calcium carbonate product that boasts improved brightness. This invention outlines a method for significantly enhancing the brightness and shade properties of high-quality PCC products. The process involves using a calcium-containing feed source with discoloring impurities, which is transformed into an aqueous slurry of calcium carbonate. The slurry undergoes fine screening through a 325 mesh screen to yield a filler grade calcium carbonate slurry. This slurry is then wet milled to liberate discoloring impurities and reduce the median particle size to less than 2 microns. Following this, the impurities are magnetically separated from the slurry, resulting in a purified product with a TAPPI brightness exceeding 96.

Another significant patent involves a coarse particle kaolin clay, characterized by an average Stokes equivalent particle diameter of about 4.5-6.0 microns. This kaolin clay exhibits a BET surface area of approximately 8-11 m²/g and a median Malvern particle size of about 9.0-10.5 microns. The preparation of this clay includes several steps such as blunging, centrifugation, magnetic separation, and chemical leaching, ultimately producing a product with excellent properties for use in thermoset composite materials and industrial coatings.

Career Highlights

Throughout his career, John M Harrison has worked with reputable companies, including J.M. Huber Corporation. His work has significantly impacted the development of materials used in various industries.

Collaborations

John has collaborated with notable individuals in his field, including Gary M Freeman and John J Hassett. These partnerships have contributed to the advancement of his innovative projects.

Conclusion

John M Harrison's contributions to the field of materials science through his patents and collaborations highlight his role as a significant inventor. His work continues to influence the industry and inspire future innovations.

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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