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Forward Citations = 167

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6 inventors (with patents filed for the assignee):

Lawrence W Ulrich (14 out of 15 patents)

Connie W Walker (12 out of 12 patents)

Conrad Walker (2 out of 2 patents)

4. Adam Kwiek (1 out of 1 patent)

5. James Lojewski (1 out of 1 patent)

6. Joe G Luyett (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 5454776 - Carton bottom folder and sealer (1995-10-03),

2. 5112288 - Carton erector apparatus (1992-05-12),

3. 4892513 - Carton erector apparatus (1990-01-09),

4. 4632666 - Carton errector apparatus (1986-12-30),

5. 4579551 - Carton erector apparatus (1986-04-01),

6. 4542616 - Automatic carton sealing apparatus (1985-09-24),

7. 4537649 - Apparatus for sealing cartons (1985-08-27),

8. 4525980 - Apparatus for sealing cartons (1985-07-02),

9. 4438617 - Belt tracking and tensioning arrangement (1984-03-27),

10. 4398381 - Carton packing station fixture (1983-08-16),

11. 4392911 - Apparatus for sealing cartons (1983-07-12),

12. 4364219 - Apparatus for sealing containers (1982-12-21),

13. 4173105 - Apparatus for sealing containers (1979-11-06),

14. 4079577 - Apparatus for sealing containers (1978-03-21),

15. 4044527 - Apparatus for sealing containers (1977-08-30),

Durable Packaging Corporation is a leading manufacturer of packaging products for the foodservice industry. With a focus on quality and sustainability, Durable Packaging offers a wide range of aluminum foil containers, plastic containers, and bakery supplies. They serve customers across the United States, providing innovative and reliable packaging solutions for restaurants, caterers, and food service distributors.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

15 Patents

#255 in Chicago, IL

#1,058 in Illinois

#21,026 in US

#39,846 in the World

Chicago, IL, United States of America

Durable Packaging Corporation