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Winona, MN, United States of America

Watlow Polymer Technologies

USPTO Granted Patents = 11

% Expired Patents = 27.3

Forward Citations = 248

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11 inventors (with patents filed for the assignee):

John W Schlesselman (6 out of 7 patents)

Keith Laken (5 out of 6 patents)

Clifford D Tweedy (5 out of 5 patents)

4. Ronald E Papenfuss (3 out of 4 patents)

5. Theodore Von Arx (3 out of 4 patents)

6. Theodore Thomas Von Arx (3 out of 38 patents)

7. Theodore VonArx (2 out of 2 patents)

8. David Adank (1 out of 1 patent)

9. Mike A Grant (1 out of 1 patent)

10. James M Rutherford (1 out of 3 patents)

11. Walter W Kusek (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 6748646 - Method of manufacturing a molded heating element assembly (2004-06-15),

2. 6744978 - Small diameter low watt density immersion heating element (2004-06-01),

3. 6541744 - Packaging having self-contained heater (2003-04-01),

4. 6539171 - Flexible spirally shaped heating element (2003-03-25),

5. 6519835 - Method of formable thermoplastic laminate heated element assembly (2003-02-18),

6. 6516142 - Internal heating element for pipes and tubes (2003-02-04),

7. 6433317 - Molded assembly with heating element captured therein (2002-08-13),

8. 6392208 - Electrofusing of thermoplastic heating elements and elements made thereby (2002-05-21),

9. 6307180 - Heated toilet seat and methods for making same (2001-10-23),

10. 6263158 - Fibrous supported polymer encapsulated electrical component (2001-07-17),

11. 6188051 - Method of manufacturing a sheathed electrical heater assembly (2001-02-13),

Watlow Polymer Technologies is a leading manufacturer of high-performance polymer products for a variety of industries. With a focus on quality and innovation, Watlow offers a wide range of polymer solutions, including custom-engineered materials and high-value products. Visit our website to learn more about our capabilities and how we can meet your specific needs.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

11 Patents

#3 in Winona, MN

#786 in Minnesota

#27,448 in US

#51,610 in the World

Winona, MN, United States of America

Watlow Polymer Technologies

Forward Citations = 248

11 inventors:

John W Schlesselman (6 out of 7 patents)

Keith Laken (5 out of 6 patents)

Clifford D Tweedy (5 out of 5 patents)

4. Ronald E Papenfuss (3 out of 4 patents)

5. Theodore Von Arx (3 out of 4 patents)

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