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St. Louis, MO, United States of America

Mallinckrodt Specialty Chemicals Company

USPTO Granted Patents = 24

CIPO Patents = 1

Trademarks = 3

Forward Citations = 142

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23 inventors (with patents filed for the assignee):

Narayanasamy Gurusamy (3 out of 7 patents)

Jacob Mathew (3 out of 12 patents)

Jerry R Patton (3 out of 6 patents)

4. Henry J Buehler (2 out of 16 patents)

5. John Robert Duchek (2 out of 7 patents)

6. John F Lang (2 out of 3 patents)

7. Neil Dunski (2 out of 17 patents)

8. Michael J Gentilcore (1 out of 4 patents)

9. Gary Lee Cantrell (1 out of 67 patents)

10. Nickolas J Stepaniuk (1 out of 5 patents)

11. Bruce J Lamb (1 out of 5 patents)

12. Larry E Denton (1 out of 5 patents)

13. Rebecca A Wallace (1 out of 17 patents)

14. David G Mock (1 out of 1 patent)

15. Ali A Bazzi (1 out of 8 patents)

24 patents: Sort by Forward Citations

1. 5312991 - Surfactant improvement for para-aminophenol process (1994-05-17),

2. 5312970 - Method of preparing D-propoxyphene (1994-05-17),

3. 5306507 - Process and composition containing pamabrom and pyrilamine maleate (1994-04-26),

4. 5284975 - Method of preparing .alpha.-d-phenylalkylbenzyl carbinol (1994-02-08),

5. 5254776 - Synthesis of bromobiphenyls (1993-10-19),

6. 5227526 - Resolution of 3-dimethylamino-2-methylpropiophenone (3-DAMP) (1993-07-13),

7. 5200507 - Method of separating a peptide from a resin (1993-04-06),

8. 5164523 - Process for the production of granular metal soap (1992-11-17),

9. 5162566 - Stereospecific synthesis of tetrasubstituted acrylic esters (1992-11-10),

10. 5157169 - Preparation of 3-halo-halobenzenes and 1-halo-3,5-dihalobenzenes (1992-10-20),

11. 5149875 - Halogenation of aromatic amine compounds (1992-09-22),

12. 5138099 - Synthesis of fluorobenzaldehydes (1992-08-11),

13. 5132457 - Stereospecific synthesis of 2(R)-2-methyl-3-dimethylamino-propiophenone (1992-07-21),

14. 5112975 - Preparation of noroxymorphone from morphine (1992-05-12),

15. 5110367 - Method for precision cleaning of medical devices (1992-05-05),

Mallinckrodt Specialty Chemicals Company is a global leader in the production of specialty chemicals for a wide range of industries. With a strong focus on research and development, Mallinckrodt is dedicated to providing high-quality products that meet the unique needs of their customers. Their innovative solutions and commitment to sustainability make them a trusted partner for businesses around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

24 Patents

#85 in St. Louis, MO

#187 in Missouri

#13,426 in US

#25,857 in the World

St. Louis, MO, United States of America

Mallinckrodt Specialty Chemicals Company

Forward Citations = 142

23 inventors:

Narayanasamy Gurusamy (3 out of 7 patents)

Jacob Mathew (3 out of 12 patents)

Jerry R Patton (3 out of 6 patents)

4. Henry J Buehler (2 out of 16 patents)

5. John Robert Duchek (2 out of 7 patents)

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