For the Inventor, By the Inventor

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Houston, TX, United States of America

Milchem Incorporated

USPTO Granted Patents = 14

Trademarks = 16

Forward Citations = 164

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11 inventors (with patents filed for the assignee):

Alphonse C Perricone (7 out of 12 patents)

James M Lucas (6 out of 9 patents)

Dorothy P Enright (4 out of 13 patents)

4. Dennis K Clapper (4 out of 33 patents)

5. Darrell P Salisbury (4 out of 4 patents)

6. Katherine Anne Elting (1 out of 1 patent)

7. Stephen H Elrod (1 out of 1 patent)

8. Weldon B Nance (1 out of 1 patent)

9. Stephen J Schneider (1 out of 1 patent)

10. Leonard D Reagan (1 out of 1 patent)

11. Marion G Bingham (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 4735732 - Filtration control additive for invert emulsion drilling fluids and (1988-04-05),

2. 4728444 - Filtration control additive for invert emulsion drilling fluids and (1988-03-01),

3. 4663076 - Invert emulsion drilling fluid comprising oligamide composition (1987-05-05),

4. 4575428 - Invert emulsion drilling fluid comprising oligamide composition (1986-03-11),

5. 4547299 - Drilling fluid containing a copolymer filtration control agent (1985-10-15),

6. 4354513 - Cuttings washer assembly (1982-10-19),

7. 4309329 - Aqueous drilling fluid additive (1982-01-05),

8. 4305110 - Mud separator valve apparatus (1981-12-08),

9. 4293427 - Drilling fluid containing a copolymer filtration control agent (1981-10-06),

10. 4288582 - Aqueous drilling fluid additive, composition and process (1981-09-08),

11. 4283517 - Continuous process for solution polymerization of acrylamide (1981-08-11),

12. 4268400 - Aqueous drilling fluid additive, composition and process (1981-05-19),

13. 4181617 - Aqueous drilling fluid and lubricant composition (1980-01-01),

14. 4057683 - Graft copolymer and process for making same (1977-11-08),

Milchem Incorporated is a leading manufacturer of specialty chemicals for industrial and agricultural applications. With over 50 years of experience, we provide innovative solutions for a wide range of industries. Our products are known for their high quality and reliability, and we are committed to sustainability and environmental responsibility.

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Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

14 Patents

#365 in Houston, TX

#1,374 in Texas

#22,262 in US

#42,118 in the World

Houston, TX, United States of America

Milchem Incorporated

Forward Citations = 164

11 inventors:

Alphonse C Perricone (7 out of 12 patents)

James M Lucas (6 out of 9 patents)

Dorothy P Enright (4 out of 13 patents)

4. Dennis K Clapper (4 out of 33 patents)

5. Darrell P Salisbury (4 out of 4 patents)

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