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Trademarks = 22

Forward Citations = 154

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11 inventors (with patents filed for the assignee):

James A Threadgill (2 out of 2 patents)

Joseph Alan Snyder (1 out of 1 patent)

Chandrashekhar Sadanand Khadilkar (1 out of 21 patents)

4. David A Purta (1 out of 11 patents)

5. David B McCall (1 out of 1 patent)

6. Stanley W Seevers (1 out of 1 patent)

7. Guy R Hughes (1 out of 1 patent)

8. Frank A Robinson (1 out of 1 patent)

9. Stuart C Salmon (1 out of 1 patent)

10. Michael Coward (1 out of 1 patent)

11. H Keith Florig (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 11396708 - Water soluble metalworking concentrate (2022-07-26),

2. 6958314 - Alkylated alkyl polyglucoside non-ionic surfactants (2005-10-25),

3. 6860142 - Method and apparatus for measuring a variable in a lubricant/coolant system (2005-03-01),

4. 6669747 - Grinding wheel with titanium aluminum nitride and hard lubricant coatings (2003-12-30),

5. 4767982 - Concentration detection system (1988-08-30),

6. 4708539 - Tap lubricating system (1987-11-24),

7. 4652372 - Liquid separator (1987-03-24),

8. 4139464 - Apparatus for and method of clarifying sump content (1979-02-13),

Master Chemical Corporation is a leading manufacturer of metalworking fluids, cleaning solutions, and environmental lubricants. With over 75 years of experience, they provide innovative products that increase productivity and efficiency for a wide range of industries worldwide.

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Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

8 Patents

#12 in Perrysburg, OH

#1,388 in Ohio

#34,921 in US

Perrysburg, OH, United States of America

Master Chemical Corporation