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Valley Forge, PA, United States of America

General Refractories Company

USPTO Granted Patents = 32

Trademarks = 11

Forward Citations = 221

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33 inventors (with patents filed for the assignee):

Franz J Brodmann (6 out of 6 patents)

Francis W Henry, Jr (5 out of 5 patents)

Joseph L Stein (4 out of 7 patents)

4. Ronald Staut (4 out of 4 patents)

5. Wate Thewis Bakker (3 out of 3 patents)

6. Charles Lamar Turner (2 out of 2 patents)

7. Grant M Farrington (2 out of 2 patents)

8. J Donald Harris (2 out of 2 patents)

9. Alfred H Foessel (2 out of 2 patents)

10. Henry E Anthonis (2 out of 2 patents)

11. Jeffrey A Mazur (2 out of 2 patents)

12. Merrill Wood, Jr (2 out of 2 patents)

13. Thomas J Maskell (2 out of 2 patents)

14. Subrata Banerjee (2 out of 2 patents)

15. Howard L Roenigk (1 out of 3 patents)

32 patents: Sort by Forward Citations

1. 4975049 - Refractory block for rotary kiln (1990-12-04),

2. 4554035 - Method of manufacturing a slide gate (1985-11-19),

3. 4453637 - Double compartment valve bag (1984-06-12),

4. 4446040 - Strong, heat stable, water repellent, expanded perlite/alkali metal (1984-05-01),

5. 4423026 - Densification of caustic magnesia and sintered periclase by acid doping (1983-12-27),

6. 4399982 - Heavy petroleum oil plasticized, tar bonded taphole mix (1983-08-23),

7. 4387173 - Use of resorcinal polymer blend as a binder for carbon-containing (1983-06-07),

8. 4383624 - Slide gate (1983-05-17),

9. 4381355 - Resorcinol polymer bonded taphole mix and specialty materials (1983-04-26),

10. 4379866 - Plugging refractory material having resin binder system (1983-04-12),

11. 4375518 - Resinous petroleum residue refractory binders (1983-03-01),

12. 4294618 - Silica-doped, chrome-alumina monolithic refractory compositions (1981-10-13),

13. 4261154 - Method and an external plating arrangement for sealing off the cold end (1981-04-14),

14. 4260872 - Ceramic ignitor (1981-04-07),

15. 4212778 - Periclase refractory and its method of manufacture (1980-07-15),

General Refractories Company is a leading manufacturer and supplier of refractory products for various industries such as steel, cement, glass, and petrochemicals. With over 50 years of experience, we specialize in providing high-quality refractory materials, including castables, bricks, and precast shapes. Our commitment to innovation, technical expertise, and customer satisfaction has made us a trusted partner for clients worldwide. Visit our website to learn more about our products and services.

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USPTO Data Jan 1 1976 - Dec 16 2025

32 Patents

#4 in Valley Forge, PA

#382 in Pennsylvania

#10,236 in US

#20,070 in the World

Valley Forge, PA, United States of America

General Refractories Company

Forward Citations = 221

33 inventors:

Franz J Brodmann (6 out of 6 patents)

Francis W Henry, Jr (5 out of 5 patents)

Joseph L Stein (4 out of 7 patents)

4. Ronald Staut (4 out of 4 patents)

5. Wate Thewis Bakker (3 out of 3 patents)

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