For the Inventor, By the Inventor

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Dallas, TX, United States of America

Indresco Inc.

USPTO Granted Patents = 38

CIPO Patents = 2

Trademarks = 2

Forward Citations = 277

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35 inventors (with patents filed for the assignee):

Mark C Langenohl (5 out of 8 patents)

Dwight S Whittemore (4 out of 6 patents)

Lawrence D Fitch (3 out of 4 patents)

4. Robert A Pennison (3 out of 9 patents)

5. Edward L Erny (2 out of 6 patents)

6. Richard E Eckman (2 out of 19 patents)

7. David R Sundell (2 out of 2 patents)

8. Stanley R Pavlica (2 out of 4 patents)

9. Albert L Renkey (2 out of 3 patents)

10. James T Hughes (2 out of 2 patents)

11. Stanley A Smith (2 out of 2 patents)

12. Richard J Knauss (2 out of 2 patents)

13. Mark R Bentley (2 out of 2 patents)

14. Robert N Anderson (2 out of 2 patents)

15. Gustav O Hughes (2 out of 2 patents)

38 patents: Sort by Forward Citations

1. 5704184 - Impact pad for ladles (1998-01-06),

2. 5603759 - Stable, cement-bonded, overhead sprayed insulating mixes and resultant (1997-02-18),

3. 5591070 - Air tool with exhaust diverting valve (1997-01-07),

4. 5588903 - Ergonomic power tool (1996-12-31),

5. 5562880 - Refractory brick design for open end of refractory lined vessel (1996-10-08),

6. 5560892 - Apparatus system for beneficiation of kish graphite (1996-10-01),

7. 5549745 - Non-slumping, pumpable castable and method of applying the same (1996-08-27),

8. 5531279 - Sensor impulse unit (1996-07-02),

9. 5512325 - Non-slumping, pumpable castable and method of applying the same (1996-04-30),

10. 5438026 - Magnesite-carbon refractories and shapes made therefrom with improved (1995-08-01),

11. 5429722 - Magnesium electrolysis cell, lining therefor, and method (1995-07-04),

12. 5427360 - Refractory brick design for open end of refractory lined vessel (1995-06-27),

13. 5418199 - Refractory mix and shapes made therefrom (1995-05-23),

14. 5367798 - Connector pin assembly for bucket rigging (1994-11-29),

15. 5363995 - Slide gate plate and method (1994-11-15),

Indresco Inc. is a global leader in manufacturing high-quality industrial products. With over 50 years of experience, Indresco specializes in providing innovative solutions for various industries including chemical processing, petrochemical, and energy. Their extensive product range includes heat exchangers, catalysts, filtration systems, and advanced materials. Indresco is committed to delivering superior performance, reliability, and customer satisfaction. Visit their website to learn more about their products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

38 Patents

#48 in Dallas, TX

#499 in Texas

#9,007 in US

#17,788 in the World

Dallas, TX, United States of America

Indresco Inc.

Forward Citations = 277

35 inventors:

Mark C Langenohl (5 out of 8 patents)

Dwight S Whittemore (4 out of 6 patents)

Lawrence D Fitch (3 out of 4 patents)

4. Robert A Pennison (3 out of 9 patents)

5. Edward L Erny (2 out of 6 patents)

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