For the Inventor, By the Inventor

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Ann Arbor, MI, United States of America

Difco Laboratories Incorporated

USPTO Granted Patents = 20

Trademarks = 4

Forward Citations = 582

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16 inventors (with patents filed for the assignee):

Jerry W Smith (6 out of 15 patents)

Ruth F Eden (6 out of 13 patents)

Leon F Strenkoski (4 out of 4 patents)

4. Gideon Eden (3 out of 30 patents)

5. Nadine M Sullivan (3 out of 3 patents)

6. Deborah R Siena (3 out of 3 patents)

7. Jon C Wannlund (3 out of 6 patents)

8. Amy T Meszaros (3 out of 3 patents)

9. Thomas E Thompson (2 out of 2 patents)

10. Steven H Boyd (1 out of 7 patents)

11. Charles A Abbas (1 out of 1 patent)

12. Ray M McMillian (1 out of 3 patents)

13. Mandar S Nagar (1 out of 1 patent)

14. Shoba C Swamy (1 out of 1 patent)

15. Maureen A Schneider (1 out of 1 patent)

20 patents: Sort by Forward Citations

1. 6670174 - Culture dish package and method of making (2003-12-30),

2. 5843699 - Rapid microorganism detection method (1998-12-01),

3. 5827680 - Three reagent gram staining method and kit (1998-10-27),

4. 5759847 - System and apparatus for automatically transferring media (1998-06-02),

5. 5672484 - Microbiological culture bottle, and method of making and using same (1997-09-30),

6. 5411893 - Dry slide for diagnostic tests (1995-05-02),

7. 5393661 - Three reagent gram staining method and kit (1995-02-28),

8. 5340747 - Diagnostic microbiological testing apparatus and method (1994-08-23),

9. 5232839 - Detecting microbiological growth (1993-08-03),

10. 5223402 - Method of detecting microbes utilizing chemiluminescent compound (1993-06-29),

11. 5188965 - Reagent source for chemiluminescent reactions, test kit, and method for (1993-02-23),

12. 5164301 - Process and kit for detecting microbial metabolism (1992-11-17),

13. 5159197 - Luminescence test and exposure apparatus (1992-10-27),

14. 5096668 - Diagnostic test slide (1992-03-17),

15. 5063090 - Lecithin as a wettability enhancing coating for plastic (1991-11-05),

Difco Laboratories Incorporated is a leading provider of high-quality laboratory equipment and supplies. With a focus on innovation and customer satisfaction, we strive to deliver top-notch products to enhance the research capabilities of our customers. Our diverse range of products includes reagents, chemicals, and lab equipment, catering to the needs of various industries such as biotechnology, pharmaceuticals, and healthcare. With a commitment to excellence, Difco Laboratories Incorporated is your trusted partner for all your laboratory needs.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

20 Patents

#48 in Ann Arbor, MI

#578 in Michigan

#15,887 in US

#30,350 in the World

Ann Arbor, MI, United States of America

Difco Laboratories Incorporated

Forward Citations = 582

16 inventors:

Jerry W Smith (6 out of 15 patents)

Ruth F Eden (6 out of 13 patents)

Leon F Strenkoski (4 out of 4 patents)

4. Gideon Eden (3 out of 30 patents)

5. Nadine M Sullivan (3 out of 3 patents)

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