Dearborn Heights, MI, United States of America

Allen Joseph Lehmen

This inventor holds 27 USPTO granted patents, primarily in Engine Emissions Control. Top assignees: Ford Global Technolgoies, LLC, Gm Global Technolgoy Operations, Inc.. Active years: 2002-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Allen Joseph Lehmen. Retrieved from https://idiyas.com/inventor/allen-joseph-lehmen

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 27

% Patents Active = 77.8

Average Co-Inventor Count = 3.7

ph-index = 5

Forward Citations = 123(Granted Patents)

Location History:

Dearborn Hgts., MI (US) (2002)
Dearborn Hgts, MI (US) (2003)
Howell, MI (US) (2012 - 2023)

Company Filing History:

18 out of 26,703

Ford Global Technolgoies, LLC

patents

9 out of 31,934

Gm Global Technolgoy Operations, Inc.

patents

Years Active: 2002-2026

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Areas of Expertise:

Particulate Filter

Engine Diagnostics

Temperature Estimation

Catalyst Reactivation

Gasoline Emissions

Hybrid Powertrain

Engine Misfire Detection

Vehicle Diagnostics

Evaporative Emissions

Torque Management

Fuel Weathering

Noise Reduction

27 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12716378 - Methods and systems for particulate filter sensor (2026-08-25),

2. 11624336 - Methods and system for estimating a temperature of an after treatment device during reactivation of an exhaust after treatment device (2023-04-11),

3. 11274615 - Methods and system for estimating a temperature of an after treatment device (2022-03-15),

4. 11261814 - System and method for detecting engine misfire (2022-03-01),

5. 11073064 - Gasoline particulate filter diagnostics (2021-07-27),

6. 11073063 - Gasoline particulate filter diagnostics (2021-07-27),

7. 11041423 - Method and system for leak detection at a particulate filter (2021-06-22),

8. 10928275 - Systems and methods for coordinating engine-off vehicle diagnostic monitors (2021-02-23),

9. 10598069 - Method and system for regenerating a gasoline particulate filter (2020-03-24),

10. 10323562 - Gasoline particulate filter diagnostics (2019-06-18),

11. 10059338 - Method and system for regenerating a gasoline particulate filter (2018-08-28),

12. 10041424 - Methods and system for catalyst reactivation (2018-08-07),

13. 9644559 - Systems and methods for improving engine emissions during starting (2017-05-09),

14. 9599052 - Methods and system for catalyst reactivation (2017-03-21),

15. 9470173 - System and method for reducing engine oil dilution (2016-10-18),

Title: **Innovative Contributions of Allen Joseph Lehmen in Temperature Estimation Technologies**

Introduction

Allen Joseph Lehmen, based in Dearborn Heights, MI, is an accomplished inventor with a remarkable portfolio comprising 26 patents. His work primarily involves advancements in automotive technology, particularly in enhancing the efficiency of exhaust after-treatment devices.

Latest Patents

Among his notable inventions are methods and systems for estimating the temperature of an after-treatment device during various operational conditions. One of his latest patents describes a system that estimates the temperature during the reactivation of an exhaust after-treatment device. This system is particularly crucial when an engine exits a fuel cut-out mode, as it monitors the delivery of excess fuel to increase the efficiency of the after-treatment device. Additionally, another patent addresses temperature estimation while an engine is in a fuel cut-out mode, utilizing fuel vapors released through a storage canister to optimize performance.

Career Highlights

Throughout his career, Allen has made significant contributions while working at prominent companies such as Ford Global Technologies, LLC and GM Global Technology Operations LLC. His innovative approaches have led to breakthroughs that enhance the functionality of automotive systems and promote environmentally friendly efficiencies.

Collaborations

Allen has collaborated with several talented professionals in the field, including Michiel Jacques van Nieuwstadt and Douglas Raymond Martin. These partnerships have fostered a creative environment that has propelled numerous innovations in temperature estimation technologies.

Conclusion

Allen Joseph Lehmen is a distinguished inventor whose work has significantly influenced the automotive industry. His extensive patent portfolio reflects a commitment to innovation and excellence in technology, particularly in the domain of exhaust treatment systems. Through his contributions, he continues to pave the way for advancements that enhance engine efficiency and environmental sustainability.

Profile summary based on public USPTO records.

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]