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For the Inventor, By the Inventor

Houston, TX, United States of America

Kemp Development Corporation


USPTO Granted Patents = 15

% Expired Patents = 6.7

Forward Citations = 210

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1 inventor (with patents filed for the assignee):

goldMedal Willard E Kemp (15 out of 43 patents)


15 patents:

1. 6773521 - Apparatus and process for treating a particulate material within a rotating retort (2004-08-10),
2. 6427711 - Inline check valve (2002-08-06),
3. 6425570 - Ball valve having retractable sealing member (2002-07-30),
4. 5958156 - Process for treating a particulate material within a rotating retort (1999-09-28),
5. 5766544 - Process for fluidizing particulate material within a rotatable retort (1998-06-16),
6. 5759483 - Apparatus for treating a particulate material within a rotating retort (1998-06-02),
7. 5407498 - Mechanically fluidized retort and method for treating particles therein (1995-04-18),
8. 5378331 - Apparatus and method for electropolishing metal workpieces (1995-01-03),
9. 5170659 - Apparatus and method for detecting fluid leakage (1992-12-15),
10. 5000492 - Flanged connection for flow line members (1991-03-19),
11. 4940208 - Ball valve (1990-07-10),
12. 4919391 - flanged connection for valves (1990-04-24),
13. 4911408 - Seat assembly for ball valves (1990-03-27),
14. 4911196 - Inline check valve (1990-03-27),
15. 4899980 - Ball valve (1990-02-13),
Company Overview
Kemp Development Corporation, based in Houston, TX, specializes in innovative engineering solutions and product development across various sectors. The company focuses on advanced technologies, including software applications and hardware integration, catering to diverse industries such as energy, telecommunications, and manufacturing. With a commitment to research and development, Kemp Development aims to enhance operational efficiency and drive technological advancements, positioning itself as a key player in the evolving landscape of engineering and technology.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

15 Patents

#343 in Houston, TX

#1,296 in Texas

#21,034 in US

#39,881 in the World

Houston, TX (US)
Houston, TX, United States of America

Kemp Development Corporation

Forward Citations = 210

1 inventor:

goldMedal Willard E Kemp (15 out of 43 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kemp Development Corporation. Retrieved from https://idiyas.com/company/kemp-development

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

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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