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Trademarks = 1

Forward Citations = 260

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9 inventors (with patents filed for the assignee):

John Tauber (3 out of 3 patents)

Gordon T Zitting (2 out of 9 patents)

Brett J Kaufman (1 out of 7 patents)

4. Frank Cassidy (1 out of 1 patent)

5. Donald P Deubel (1 out of 1 patent)

6. Steven B Juk (1 out of 1 patent)

7. Randall F House (1 out of 1 patent)

8. Robert L Morgan, Jr (1 out of 1 patent)

9. Earl Kahl (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 6896160 - Lockable disc top dispensing closure (2005-05-24),

2. D426772 - Dispensing jar cover (2000-06-20),

3. 6065648 - Child resistant dispenser (2000-05-23),

4. 5765705 - Child resistant closure (1998-06-16),

5. 5706962 - Thumb tab child resistant closure (1998-01-13),

6. 4752014 - Tamper-evident child-resistant closure and container with same (1988-06-21),

7. 4744481 - Closure for containers (1988-05-17),

8. 4143586 - Mud pump piston (1979-03-13),

9. 4032159 - Interference compression seal (1977-06-28),

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Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

9 Patents

#54 in Baltimore, MD

#435 in Maryland

#31,620 in US

Baltimore, MD, United States of America

Poly-seal Corporation