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For the Inventor, By the Inventor

Incheon, South Korea

Daewoo Heavy Industries Ltd.


USPTO Granted Patents = 60

Trademarks = 1

Forward Citations = 744

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74 inventors (with patents filed for the assignee):

goldMedal Min Kyu Lee (3 out of 17 patents)

silverMedal Wesley Robert Cherry, Jr (3 out of 3 patents)

bronzeMedal Hyun G Ko (3 out of 3 patents)

4.  Seung Ho Lee (2 out of 100 patents)

5.  Eric Richard Colburn (2 out of 39 patents)

6.  Jin Seok Beom (2 out of 2 patents)

7.  Chil Min Kim (2 out of 2 patents)

8.  Jae Bong Ahn (2 out of 2 patents)

9.  Seung Keun Lee (2 out of 2 patents)

10.  Edward V Leskovec (2 out of 12 patents)

11.  Jong Soo Kim (1 out of 159 patents)

12.  Dino Anthony Mariano (1 out of 20 patents)

13.  Dal Sik Jang (1 out of 8 patents)

14.  Mark Douglas Donaldson (1 out of 3 patents)

15.  Dae Jung Seong (1 out of 1 patent)


Core Competencies:
Power-Shifted Transmission
Forklift Control
Hydraulic System
Brake Valve Device
Machine Tool
Skid Steer Loader
Pump Motor
Vertical Machining Center
Automatic Tool Changer
Safety Apparatus
Fluid Pressure Control
Wear Resistant Component

60 patents:

1. 6546127 - System and method for real time three-dimensional model display in machine tool (2003-04-08),
2. 6416440 - Semi-automatic power shift transmission and shift control method thereof (2002-07-09),
3. 6386346 - Brake valve device for industrial vehicles (2002-05-14),
4. 6325589 - Loader with a controlled vertical path of a working implement (2001-12-04),
5. 6299416 - Bulk material pump device (2001-10-09),
6. 6298937 - Loader with an improved parking brake device (2001-10-09),
7. 6257080 - Power-Shifted transmission for industrial vehicles (2001-07-10),
8. 6234445 - Pump motor mounting arrangement (2001-05-22),
9. 6192301 - Self-diagnostic method for a forklift truck (2001-02-20),
10. 6182781 - Pedal locking device for a loader (2001-02-06),
11. 6176656 - Machine tool with a splash guard arrangement (2001-01-23),
12. 6093482 - Carbon-carbon composite for friction products and method of making same (2000-07-25),
13. D427612 - Forklift truck cabin (2000-07-04),
14. 6049614 - Synchronized chaotic system and communication system using synchronized (2000-04-11),
15. 6041163 - Apparatus for controlling a pump motor of a forklift truck (2000-03-21),
Company Overview
Daewoo Heavy Industries Ltd., headquartered in Incheon, South Korea, specializes in the development and manufacturing of industrial vehicles. The company is recognized for its expertise in power-shifted transmission systems, forklift control technologies, and hydraulic systems. Additionally, Daewoo focuses on advanced machinery such as skid steer loaders, vertical machining centers, and pump motors. Its innovative solutions cater to various sectors, enhancing operational efficiency and productivity in industrial applications.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

60 Patents

#11 in Incheon, 402-040

#284 in South Korea

#12,083 in the World

Incheon, KR
Incheon, South Korea

Daewoo Heavy Industries Ltd.

Forward Citations = 744

74 inventors:

goldMedal Min Kyu Lee (3 out of 17 patents)

silverMedal Wesley Robert Cherry, Jr (3 out of 3 patents)

bronzeMedal Hyun G Ko (3 out of 3 patents)

4.  Seung Ho Lee (2 out of 100 patents)

5.  Eric Richard Colburn (2 out of 39 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Daewoo Heavy Industries Ltd.. Retrieved from https://idiyas.com/company/daewoo-heavy-industries

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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