For the Inventor, By the Inventor

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Allentown, PA, United States of America

Mack Trucks, Inc.

USPTO Granted Patents = 140

% Expired Patents = 27.9

CIPO Patents = 14

EPO Patents = 46

Trademarks = 41

Forward Citations = 1,781

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142 inventors (with patents filed for the assignee):

Chun Tai (12 out of 13 patents)

David P Onopa (10 out of 10 patents)

Stephen Geyer (8 out of 9 patents)

4. Charles J Groeller (8 out of 11 patents)

5. Timothy Suder (8 out of 8 patents)

6. John Jerwick (7 out of 8 patents)

7. Jeffrey S Zsoldos (7 out of 9 patents)

8. Victor Kronstadt (6 out of 6 patents)

9. Bruce Phelps Hollenbeck (6 out of 6 patents)

10. John B Bartel (5 out of 5 patents)

11. Kenth I Svensson (4 out of 51 patents)

12. John Gibble (4 out of 9 patents)

13. Michael E Kahl (4 out of 6 patents)

14. Joseph H Schmidt (4 out of 4 patents)

15. John Sponsky (3 out of 3 patents)

Core Competencies:

Hybrid Engine

Diesel Emissions

Exhaust Aftertreatment

Transmission Systems

Power Management

Heat Recovery

Vehicle Architecture

Clutch Mechanisms

Fuel Economy

Cooling Systems

Emission Control

Drive Axle Assembly

140 patents: Sort by Forward Citations

1. 9862374 - Series hybrid transmission and gear-shifting method for a series hybrid transmission (2018-01-09),

2. 9752480 - Method of operating a diesel engine and diesel engine arrangement having plural operating modes (2017-09-05),

3. 9695777 - Series parallel waste heat recovery system (2017-07-04),

4. 9517693 - Convertible tandem axle arrangement and method for converting a tandem axle arrangement to either of a single drive or a dual drive tandem axle arrangement (2016-12-13),

5. 9488098 - Exhaust gas recirculation mixer device (2016-11-08),

6. 9482124 - Method for detecting abnormally frequent diesel particulate filter regeneration, engine and exhaust aftertreatment system, and warning system and method (2016-11-01),

7. 9448091 - Vacuum insulated venturi meter for an exhaust gas recirculation apparatus (2016-09-20),

8. 9381806 - Vehicle with multiple drive axle assembly with a raisable and lowerable rear drive axle, and method of operating such a vehicle (2016-07-05),

9. 9188176 - Transmission with countershaft brake and method for braking a countershaft (2015-11-17),

10. 9157347 - Internal combustion engine including crankshaft that is rotated while engine is in a non-fueled mode and method of operating an engine (2015-10-13),

11. 9115631 - Method for monitoring components in an exhaust after treatment system, an exhaust after treatment system, and a controller for an exhaust after treatment system (2015-08-25),

12. 8991154 - Methods and systems for controlling reductant levels in an SCR catalyst (2015-03-31),

13. 8984860 - Diesel engine and exhaust aftertreatment system and method of treating exhaust gases from a diesel engine (2015-03-24),

14. 8939174 - Cartridge EGR valve assembly (2015-01-27),

15. 8919123 - Waste heat recovery system with partial recuperation (2014-12-30),

Mack Trucks, Inc., headquartered in Allentown, PA, specializes in the development and manufacturing of heavy-duty trucks and related technologies. The company is a leader in hybrid engine technology, focusing on innovations that enhance diesel emissions control and exhaust aftertreatment systems. Mack's expertise extends to advanced transmission systems, power management, heat recovery, and vehicle architecture, ensuring efficient performance and sustainability in the trucking industry. Their commitment to engineering excellence positions them at the forefront of automotive advancements.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

Mack Trucks, Inc.

140 Patents

#3 in Allentown, PA

#118 in Pennsylvania

#2,784 in US

#5,785 in the World

Allentown, PA, United States of America

Mack Trucks, Inc.

Forward Citations = 1,781

142 inventors:

Chun Tai (12 out of 13 patents)

David P Onopa (10 out of 10 patents)

Stephen Geyer (8 out of 9 patents)

4. Charles J Groeller (8 out of 11 patents)

5. Timothy Suder (8 out of 8 patents)

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