logo

For the Inventor, By the Inventor

Bagley, MN, United States of America

Product Research and Development, Inc.

Calculating rank
USPTO Granted Patents = 21

Forward Citations = 546

Loading Chart...
Loading Chart...

9 inventors (with patents filed for the assignee):

goldMedal E Dale Hartley (10 out of 23 patents)

silverMedal Donald F Solomon (6 out of 16 patents)

bronzeMedal F Scott Hartley (6 out of 13 patents)

4.  Layne S Leishman (3 out of 4 patents)

5.  Brian George Eck (1 out of 28 patents)

6.  Shane Clair Okeson (1 out of 11 patents)

7.  Michael Gunderson (1 out of 3 patents)

8.  Richard K Olson (1 out of 1 patent)

9.  John E Zerbey (1 out of 1 patent)


21 patents:

1. 6120399 - Continuously variable transmission driven element (2000-09-19),
2. 5380428 - Pump for reverse osmosis system (1995-01-10),
3. 5244361 - Pump for reverse osmosis system (1993-09-14),
4. 5193988 - Reverse osmosis system and automatic cycling booster pump therefor (1993-03-16),
5. 5154820 - Reverse osmosis system with cycled pressure intensifiers (1992-10-13),
6. 5125809 - Wobble plate pump (1992-06-30),
7. D323999 - Highway delineator guidepost (1992-02-18),
8. 5028166 - Highway guidepost (1991-07-02),
9. 5020605 - Post driver and methodology (1991-06-04),
10. 5000845 - Reverse osmosis system and automatic cycling booster pump therefor (1991-03-19),
11. 4995793 - Reverse osmosis system and automatic cycling booster pump therefor (1991-02-26),
12. 4827832 - Valve system for a reciprocating device (1989-05-09),
13. 4827831 - Reciprocating device and switching mechanism therefor (1989-05-09),
14. 4797069 - Pump with variable angle wobble plate (1989-01-10),
15. 4684332 - Ratio pump and method (1987-08-04),
Company Overview
Product Research and Development, Inc. is a specialized firm based in Bagley, Minnesota, focusing on innovative solutions in product design and development. The company excels in creating advanced prototypes and conducting extensive research to enhance product functionality and marketability. With a strong emphasis on collaboration, it partners with various industries to deliver tailored solutions that meet specific client needs. Their expertise spans multiple domains, ensuring a comprehensive approach to product innovation and development.
Profile summary synthesized from public USPTO records and patent filings.

logo

Company Badge

USPTO Data Jan 1 1976 - Nov 10 2026

21 Patents

#2 in Bagley, MN

#471 in Minnesota

#15,748 in US

#30,080 in the World

Bagley, MN (US)
Bagley, MN, United States of America

Product Research and Development, Inc.

Forward Citations = 546

9 inventors:

goldMedal E Dale Hartley (10 out of 23 patents)

silverMedal Donald F Solomon (6 out of 16 patents)

bronzeMedal F Scott Hartley (6 out of 13 patents)

4.  Layne S Leishman (3 out of 4 patents)

5.  Brian George Eck (1 out of 28 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Product Research and Development, Inc.. Retrieved from https://idiyas.com/company/product-research-and-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]
Loading…