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Forward Citations = 74

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9 inventors (with patents filed for the assignee):

Denis G Csathy (5 out of 5 patents)

Robert J Krowech (3 out of 5 patents)

Wendell L Hung (3 out of 3 patents)

4. Eugene S Denysenko (2 out of 2 patents)

5. Guy T Thompson (2 out of 2 patents)

6. Edward B Congdon (1 out of 1 patent)

7. Daniel S Ewert (1 out of 3 patents)

8. Jon M Heath (1 out of 1 patent)

9. Charles J Pehoski (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 5415198 - Safety vent and deflector for a pressurized vessel (1995-05-16),

2. 5219150 - Fluid jack for a heat exchanger (1993-06-15),

3. 5136985 - Boiler tube support (1992-08-11),

4. 5131459 - Heat exchanger with movable tube assemblies (1992-07-21),

5. 4421067 - Apparatus and method for soot cleaning in high-pressure heat exchangers (1983-12-20),

6. 4414923 - Heat recovery boiler for high pressure gas (1983-11-15),

7. 4188916 - Waste heat boiler for abstraction of heat energy from gaseous effluent (1980-02-19),

8. 4153012 - Waste heat watertube boiler (1979-05-08),

9. 3976033 - Vertical firetube waste heat boiler (1976-08-24),

10. 3971345 - Coal fired package boiler (1976-07-27),

Deltak Corporation is a leading provider of online learning and technology services to higher education institutions. With over 30 years of experience, Deltak has helped colleges and universities expand their online programs and reach a wider audience of students. Their services include program development, marketing, enrollment management, and student support to ensure the success of online education initiatives.

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USPTO Data Jan 1 1976 - Dec 30 2025

10 Patents

#153 in Minneapolis, MN

#836 in Minnesota

#29,006 in US

#54,324 in the World

Minneapolis, MN, United States of America

Deltak Corporation