Pla-Cor Incorporated

Calculating rank

USPTO Granted Patents = 8

% Expired Patents = 25.0

Forward Citations = 49

Loading Chart...

4 inventors (with patents filed for the assignee):

Derrell J Weldy (6 out of 7 patents)

Michael D Weldy (4 out of 5 patents)

Lewis J Hein (4 out of 4 patents)

4. Daniel Grant Ericson (2 out of 29 patents)

8 patents: Sort by Forward Citations

1. 7534620 - Method and device for monitoring platelet function (2009-05-19),

2. 7309607 - Method and device for monitoring platelet function (2007-12-18),

3. 7111811 - Hopper stand (2006-09-26),

4. 6907908 - Hopper apparatus and method for application of joint compound to corner beads (2005-06-21),

5. D501050 - Three way; 2-90° outside, 1-135° inside, bullnose corner (2005-01-18),

6. D487520 - Three way; 2-90° outside, 1-90° inside, bullnose corner (2004-03-10),

7. D487156 - Three way; 2-90° inside, 1-135° outside, bullnose corner (2004-02-25),

8. D486920 - Three way; 1-90° outside, 2-90° inside, bullnose corner (2004-02-18),

Company Overview

Pla-cor Incorporated is a leading provider of high-quality custom packaging solutions. With over 30 years of experience in the industry, we specialize in the design and production of custom corrugated boxes, displays, and packaging materials for a wide range of industries. Our commitment to providing innovative and cost-effective packaging solutions has made us a trusted partner for businesses looking to enhance their brand image and protect their products during shipping and storage.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

8 Patents

#4 in Santee, CA

#8,545 in California

#35,954 in US

Santee, CA, United States of America