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Forward Citations = 106

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4 inventors (with patents filed for the assignee):

William T Wilkinson (7 out of 136 patents)

Mario Boiardi (2 out of 2 patents)

Harold R Gayle (1 out of 3 patents)

4. John J Nelson (1 out of 12 patents)

8 patents: Sort by Forward Citations

1. 5848739 - Pump dispenser for flowable materials (1998-12-15),

2. 5547107 - Dispenser for flowable materials (1996-08-20),

3. 5253787 - Fluid dispenser with tiltable dispensing nozzle and sealing membrane (1993-10-19),

4. 5092496 - Dispenser for flowable materials having a piston with a flexible sealing (1992-03-03),

5. D303627 - Dispenser (1989-09-26),

6. 4858785 - Multiple fluid dispenser (1989-08-22),

7. D296060 - Toothpaste dispenser (1988-06-07),

8. 4742940 - Dispenser for flowable materials (1988-05-10),

Package Research Corp. is a leading research and development company specializing in packaging solutions. With a team of expert engineers and designers, we strive to provide innovative and sustainable packaging options for our clients across various industries. Our comprehensive services include product testing, prototyping, and customized packaging designs to meet the unique needs of each client. Contact us today to learn more about our cutting-edge packaging solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

8 Patents

#197 in Cleveland, OH

#1,438 in Ohio

#35,836 in US

Cleveland, OH, United States of America

Package Research Corp.

Forward Citations = 106

4 inventors:

William T Wilkinson (7 out of 136 patents)

Mario Boiardi (2 out of 2 patents)

Harold R Gayle (1 out of 3 patents)

4. John J Nelson (1 out of 12 patents)

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