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For the Inventor, By the Inventor

Rowley, MA, United States of America

Kortec, Inc.


USPTO Granted Patents = 16

% Expired Patents = 12.5


Trademarks = 1

Forward Citations = 269

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6 inventors (with patents filed for the assignee):

goldMedal Paul Michael Swenson (14 out of 31 patents)

silverMedal Douglas Grosvenor Sabin (4 out of 26 patents)

bronzeMedal Ronald Roberts (2 out of 17 patents)

4.  John Kermet (1 out of 1 patent)

5.  Roberto E Rahn (1 out of 1 patent)

6.  Christian Lenk (1 out of 1 patent)


16 patents:

1. 9409333 - Methods of molding multi-layer polymeric articles having control over the breakthrough of the core layer (2016-08-09),
2. 9227349 - Method of molding a multi-layer article (2016-01-05),
3. 9221204 - Techniques to mold parts with injection-formed aperture in gate area (2015-12-29),
4. 9114906 - Non-symmetric multiple layer injection molded products and methods (2015-08-25),
5. 8801991 - Heat-seal failure prevention method and article (2014-08-12),
6. 8491290 - Apparatus for producing non-symmetric multiple layer injection molded products (2013-07-23),
7. 8435434 - Non-symmetric multiple layer injection molded products and methods (2013-05-07),
8. 7517480 - Automatic process control for a multilayer injection molding apparatus (2009-04-14),
9. 7399442 - Multilayer molding using temperature adjustment of flow rate in conjunction with shooting pot technology (2008-07-15),
10. 7306446 - Co-injection nozzle with improved interior layer termination (2007-12-11),
11. 6908581 - Optimized flow to prevent core layer breakthrough (2005-06-21),
12. 6649101 - Method for using a sprue to reduce the size of a core layer hole in an injection molding process by terminating an injection stream within the sprue (2003-11-18),
13. 6596213 - Method of molding multi-layer polymer plastic articles with control of relative shifting of the core layer (2003-07-22),
14. 6209288 - Device and process for laying band or strip material (2001-04-03),
15. 6187241 - Method of throttle-valving control for the co-extrusion of plastic materials (2001-02-13),
Company Overview
Kortec, Inc. is a specialized technology company based in Rowley, Massachusetts, focusing on advanced manufacturing solutions for the packaging industry. The company is known for its innovative approaches in developing high-performance injection molding systems and related technologies. Kortec emphasizes sustainability and efficiency in its product offerings, catering to a diverse range of clients seeking to enhance their packaging processes. The firm is committed to driving advancements in manufacturing technology, ensuring quality and reliability in its solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Kortec, Inc. USPTO Patent Assignee Logo
16 Patents

#3 in Rowley, MA

#1,202 in Massachusetts

#19,907 in US

#37,788 in the World

Rowley, MA (US)
Rowley, MA, United States of America

Kortec, Inc.

Forward Citations = 269

6 inventors:

goldMedal Paul Michael Swenson (14 out of 31 patents)

silverMedal Douglas Grosvenor Sabin (4 out of 26 patents)

bronzeMedal Ronald Roberts (2 out of 17 patents)

4.  John Kermet (1 out of 1 patent)

5.  Roberto E Rahn (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kortec, Inc.. Retrieved from https://idiyas.com/company/kortec

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]
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