For the Inventor, By the Inventor

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Birmingham, AL, United States of America

Jim Walter Resources, Inc.

USPTO Granted Patents = 13

Forward Citations = 140

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16 inventors (with patents filed for the assignee):

Michael E Londrigan (4 out of 15 patents)

Claude C White (3 out of 13 patents)

Frederick Carr (3 out of 4 patents)

4. Michael J Skowronski (2 out of 16 patents)

5. Michael Gauna (1 out of 1 patent)

6. Henry Philip Orem (1 out of 2 patents)

7. David R Hart (1 out of 3 patents)

8. Jerry E Hill (1 out of 2 patents)

9. Frank D Albert (1 out of 2 patents)

10. Alan P Conroy (1 out of 2 patents)

11. David L Skinner (1 out of 3 patents)

12. William R Huck (1 out of 1 patent)

13. William D Stephens (1 out of 2 patents)

14. Richard K Hallmark (1 out of 4 patents)

15. Larry C Jordan (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 4954018 - Yield tube bolt assembly (1990-09-04),

2. 4714717 - Polyester polyols modified by low molecular weight glycols and cellular (1987-12-22),

3. 4652591 - Reaction products of terephthalic acid residues and polycarboxylic (1987-03-24),

4. 4607568 - Extensible line brattice (1986-08-26),

5. 4572919 - Unsaturated polyoxyalkylene adduct/fumarate diester reaction product for (1986-02-25),

6. 4548087 - Coal sampling device (1985-10-22),

7. 4539341 - Digestion products of polyalkylene terephthalate polymers and (1985-09-03),

8. 4534680 - Combination expansion shell and resin secured mine roof anchor assembly (1985-08-13),

9. 4534679 - Combination expansion shell and resin secured mine roof anchor assembly (1985-08-13),

10. 4529745 - Unsaturated polyoxyalkylene adduct/fumarate diester reaction product for (1985-07-16),

11. 4347020 - Mine roof bolt assembly (1982-08-31),

12. 4124730 - Method of producing organic short fibers and treatment thereof with a (1978-11-07),

13. 4069220 - Process for the production of phenolic complexes of (1978-01-17),

Jim Walter Resources, Inc. is a prominent player in the coal mining industry, primarily focused on the extraction and production of high-quality coal. Based in Birmingham, Alabama, the company operates several mines and is known for its commitment to safety and environmental stewardship. With a strong emphasis on innovation, Jim Walter Resources invests in technologies that enhance mining efficiency and reduce environmental impact, positioning itself as a key contributor to the energy sector in the region.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

13 Patents

#18 in Birmingham, AL

#96 in Alabama

#23,815 in US

#44,988 in the World

Birmingham, AL, United States of America

Jim Walter Resources, Inc.

Forward Citations = 140

16 inventors:

Michael E Londrigan (4 out of 15 patents)

Claude C White (3 out of 13 patents)

Frederick Carr (3 out of 4 patents)

4. Michael J Skowronski (2 out of 16 patents)

5. Michael Gauna (1 out of 1 patent)

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