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For the Inventor, By the Inventor

Plainfield, IL, United States of America

Hpd, LLC

Calculating rank
USPTO Granted Patents = 12

% Expired Patents = 41.7



Trademarks = 3

Forward Citations = 135

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16 inventors (with patents filed for the assignee):

goldMedal Keith R Minnich (6 out of 13 patents)

silverMedal Kashi Banerjee (3 out of 18 patents)

bronzeMedal Timothy J Rittof (2 out of 2 patents)

4.  Jay D Dockendorff (2 out of 2 patents)

5.  Mark Nicholson (1 out of 6 patents)

6.  Mark D Patterson (1 out of 3 patents)

7.  Dorothy Neu (1 out of 2 patents)

8.  David E Gamache (1 out of 7 patents)

9.  Jean-Claude Gallot (1 out of 2 patents)

10.  Robert L Goldsmith (1 out of 15 patents)

11.  Dan Peterson (1 out of 8 patents)

12.  Charles Edward Mackey (1 out of 1 patent)

13.  Jean-Claude Patel (1 out of 1 patent)

14.  Lance Thornton (1 out of 1 patent)

15.  Ernest L Wright (1 out of 1 patent)


12 patents:

1. 8147699 - Monolith filter apparatus and membrane apparatus, and method using same (2012-04-03),
2. 8052763 - Method for removing dissolved solids from aqueous waste streams (2011-11-08),
3. 8047287 - Process for recovering heavy oil utilizing one or more membranes (2011-11-01),
4. 7909098 - Process for recovering heavy oil utilizing one or more membranes (2011-03-22),
5. 7905283 - Process for removing silica in heavy oil recovery (2011-03-15),
6. 7686079 - Method for removing silica from evaporator concentrate (2010-03-30),
7. 7597144 - Process for recovering heavy oil utilizing one or more membranes (2009-10-06),
8. 7591311 - Process for recovering heavy oil (2009-09-22),
9. 7578345 - Process for recovering heavy oil using multiple effect evaporation (2009-08-25),
10. 5261485 - Slurry distributor (1993-11-16),
11. 5174859 - Method for treating mechanical pulp plant effluent (1992-12-29),
12. 4273670 - Apparatus for and method of removing radioactive bottoms from an (1981-06-16),
Company Overview
Hpd, LLC is a technology-focused company based in Plainfield, Illinois, specializing in the development and manufacturing of advanced solutions for various industries. The organization is known for its expertise in creating innovative products that enhance operational efficiency and performance. With a strong emphasis on research and development, Hpd, LLC engages in cutting-edge technology domains, contributing to advancements in sectors such as manufacturing and engineering. Its commitment to quality and innovation positions it as a key player in the technology landscape.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Hpd, LLC USPTO Patent Assignee Logo
12 Patents

#4 in Plainfield, IL

#1,255 in Illinois

#25,589 in US

#48,235 in the World

Plainfield, IL (US)
Plainfield, IL, United States of America

Hpd, LLC

Forward Citations = 135

16 inventors:

goldMedal Keith R Minnich (6 out of 13 patents)

silverMedal Kashi Banerjee (3 out of 18 patents)

bronzeMedal Timothy J Rittof (2 out of 2 patents)

4.  Jay D Dockendorff (2 out of 2 patents)

5.  Mark Nicholson (1 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hpd, LLC. Retrieved from https://idiyas.com/company/hpd

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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