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),

Company Overview

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.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

8 Patents

#197 in Cleveland, OH

#1,440 in Ohio

#35,924 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Package Research Corp.. Retrieved from https://idiyas.com/company/package-research

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]