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For the Inventor, By the Inventor

Crystal Lake, IL, United States of America

Knaack Manufacturing Company

USPTO Granted Patents = 19


Trademarks = 28

Forward Citations = 456

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20 inventors (with patents filed for the assignee):

goldMedal Kenneth F Weger, Jr (14 out of 15 patents)

silverMedal Howard L Knaack (6 out of 6 patents)

bronzeMedal Freddie C Webb (5 out of 5 patents)

4.  Tom Schwalie (2 out of 3 patents)

5.  Atul Saigal (2 out of 4 patents)

6.  Gerald A Draffkorn, Jr (2 out of 2 patents)

7.  Stephen J Moore (2 out of 2 patents)

8.  Steven J Rogman (1 out of 2 patents)

9.  Barry Bidinger (1 out of 3 patents)

10.  Randy Hyde (1 out of 2 patents)

11.  Blackford Brauer (1 out of 1 patent)

12.  Tony O'Dierno (1 out of 1 patent)

13.  Wes McReynolds (1 out of 1 patent)

14.  Fred C Webb (1 out of 1 patent)

15.  Gerald Drafflorn, Jr (1 out of 1 patent)


19 patents:

1. D535235 - Door for truck underbed box (2007-01-16),
2. D532674 - Pushbutton lock (2006-11-28),
3. 6983968 - Headache rack for pickup trucks (2006-01-10),
4. 6883274 - Device and method for opening a door (2005-04-26),
5. 6772613 - Lock system for a horizontal locking box (2004-08-10),
6. 5829654 - Cargo rack for vehicles (1998-11-03),
7. D353574 - Ladder rack support (1994-12-20),
8. D346994 - Ladder rack support (1994-05-17),
9. 5308126 - Push-button lock system (1994-05-03),
10. D346355 - Ladder rack support (1994-04-26),
11. 5145087 - Closure hinge mechanism (1992-09-08),
12. 5076078 - Lock system (1991-12-31),
13. 4635422 - Interlocking seal for insulated panels (1987-01-13),
14. 4573731 - Vehicle storage drawer unit (1986-03-04),
15. 4509787 - Truck rack (1985-04-09),
Company Overview
Knaack Manufacturing Company, based in Crystal Lake, Illinois, specializes in the design and production of high-quality job site storage solutions. The company is renowned for its durable and secure storage products, including toolboxes, job site boxes, and storage containers, catering primarily to construction and industrial sectors. Knaack focuses on innovation and functionality, ensuring that its products meet the demanding needs of professionals who require reliable storage solutions in challenging environments.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

19 Patents

#7 in Crystal Lake, IL

#876 in Illinois

#17,150 in US

#32,693 in the World

Crystal Lake, IL (US)
Crystal Lake, IL, United States of America

Knaack Manufacturing Company

Forward Citations = 456

20 inventors:

goldMedal Kenneth F Weger, Jr (14 out of 15 patents)

silverMedal Howard L Knaack (6 out of 6 patents)

bronzeMedal Freddie C Webb (5 out of 5 patents)

4.  Tom Schwalie (2 out of 3 patents)

5.  Atul Saigal (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Knaack Manufacturing Company. Retrieved from https://idiyas.com/company/knaack-manufacturing-company

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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