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For the Inventor, By the Inventor

Pittsburgh, PA, United States of America

Pennsylvania Engineering Corporation


USPTO Granted Patents = 59

Forward Citations = 244

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34 inventors (with patents filed for the assignee):

goldMedal Rashed N Nagati (16 out of 16 patents)

silverMedal Eberhard G Schempp (9 out of 10 patents)

bronzeMedal Howard M Fisher (8 out of 8 patents)

4.  Jai K Pearce (8 out of 8 patents)

5.  Dennis L Hixenbaugh (5 out of 7 patents)

6.  Harry T Montgomery (3 out of 3 patents)

7.  Joseph Ziegler (3 out of 5 patents)

8.  Edgardo J Robert (3 out of 3 patents)

9.  Ronald D Gray (2 out of 7 patents)

10.  David Lee Schroeder (2 out of 2 patents)

11.  Bernd G Albers (2 out of 3 patents)

12.  John W Mrozek (2 out of 2 patents)

13.  William Wells (2 out of 2 patents)

14.  Harold Nomine (2 out of 2 patents)

15.  John A Persson (2 out of 12 patents)


Core Competencies:
Gas Collector
Metallurgical Vessels
Steel Making
Pollution Control
Gas Cleaning System
Self Baking Electrode
Tuyere Injection
Metal Refining
Cooling Assembly
Mobile Hot Metal Mixer
Scrap Preheating
Cement Clinker Production

59 patents:

1. 4653064 - Gas collector for metallurgical vessels (1987-03-24),
2. 4646315 - Arc furnace burner control method and apparatus (1987-02-24),
3. 4612043 - Steel making method (1986-09-16),
4. 4611339 - Method and apparatus for removal of impure gases at time of scrap (1986-09-09),
5. 4575856 - Iron free self baking electrode (1986-03-11),
6. 4569057 - Material feed system for smelting furnaces (1986-02-04),
7. 4501599 - Method and apparatus for cleaning waste gases from aluminum production (1985-02-26),
8. 4497656 - Steel making method (1985-02-05),
9. 4492567 - Method of removal of impure gases at the time of scrap preheating, and (1985-01-08),
10. 4485841 - Pollution control device (1984-12-04),
11. 4483709 - Steel production method (1984-11-20),
12. 4449701 - Tuyere for the injection of gases into a metallurgical vessel (1984-05-22),
13. 4436291 - Metallurgical vessel suspension system (1984-03-13),
14. 4428564 - Metallurgical vessel (1984-01-31),
15. 4426069 - Mettalurgical vessel suspension system (1984-01-17),
Pennsylvania Engineering Corporation is a leading engineering firm based in Pennsylvania, providing comprehensive engineering solutions to clients across various industries. With over 20 years of experience, we offer a wide range of engineering services including structural, civil, mechanical, and electrical engineering. Our team of highly skilled professionals is dedicated to delivering innovative and cost-effective solutions to meet our clients' unique needs. Visit our website to learn more about our expertise, projects, and how we can assist you in achieving your engineering goals.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

59 Patents

#38 in Pittsburgh, PA

#225 in Pennsylvania

#5,862 in US

#11,820 in the World

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Pittsburgh, PA, United States of America

Pennsylvania Engineering Corporation

Forward Citations = 244

34 inventors:

goldMedal Rashed N Nagati (16 out of 16 patents)

silverMedal Eberhard G Schempp (9 out of 10 patents)

bronzeMedal Howard M Fisher (8 out of 8 patents)

4.  Jai K Pearce (8 out of 8 patents)

5.  Dennis L Hixenbaugh (5 out of 7 patents)

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