For the Inventor, By the Inventor

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Minneapolis, MN, United States of America

Recovery Engineering, Inc.

USPTO Granted Patents = 23

Trademarks = 2

Forward Citations = 1,113

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19 inventors (with patents filed for the assignee):

Richard D Hembree (12 out of 13 patents)

David James Emmons (9 out of 118 patents)

James L Lund (5 out of 7 patents)

4. John D Tanner (5 out of 20 patents)

5. David E Carmein (4 out of 8 patents)

6. Brian F Sullivan (4 out of 4 patents)

7. Jeffrey A Weber (3 out of 42 patents)

8. Johannes N Gaston (2 out of 47 patents)

9. Shaohui Qiu (2 out of 14 patents)

10. William E Stumpf (2 out of 48 patents)

11. Brian D Gale (2 out of 2 patents)

12. Eric J Mueller (2 out of 8 patents)

13. Timothy Jordan Prescott (2 out of 2 patents)

14. Paul D Rothstein (2 out of 3 patents)

15. Alan L Carlson (2 out of 2 patents)

23 patents: Sort by Forward Citations

1. 6241103 - Filter cartridge for water treatment device (2001-06-05),

2. D440110 - Water purification pitcher (2001-04-11),

3. D438592 - Faucet-mounted water treatment device (2001-03-07),

4. 6103114 - Pour-through water treatment carafe (2000-08-15),

5. 5928504 - Faucet-mounted water treatment device (1999-07-27),

6. 5882507 - Water filter cartridge end-of-life mechanism (1999-03-16),

7. D406003 - Water purification pitcher (1999-02-23),

8. 5785844 - End of life mechanism for water treatment cartridge (1998-07-28),

9. 5709794 - Low-cost portable water filter (1998-01-20),

10. D386041 - Water purification pitcher (1997-11-11),

11. D377515 - Water filter cartridge (1997-01-21),

12. D377388 - Water purifier (1997-01-14),

13. 5536394 - End of life mechanism for water treatment cartridge (1996-07-16),

14. 5527451 - Water treatment device with volume totalization valve (1996-06-18),

15. 5525214 - Filter cartridge for water treatment device (1996-06-11),

Recovery Engineering, Inc. is a leading provider of advanced water treatment solutions, specializing in industrial and municipal applications. With over 20 years of experience, we offer reliable and cost-effective systems for managing and treating water. Our innovative technologies ensure high-quality and sustainable solutions for our clients' diverse water treatment needs.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

23 Patents

#77 in Minneapolis, MN

#411 in Minnesota

#13,966 in US

#26,869 in the World

Minneapolis, MN, United States of America

Recovery Engineering, Inc.

Forward Citations = 1,113

19 inventors:

Richard D Hembree (12 out of 13 patents)

David James Emmons (9 out of 118 patents)

James L Lund (5 out of 7 patents)

4. John D Tanner (5 out of 20 patents)

5. David E Carmein (4 out of 8 patents)

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