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For the Inventor, By the Inventor

Livonia, MI, United States of America

Harold A Ladouceur

This inventor holds 51 USPTO granted patents and 1 EPO patent, primarily in Fastener Technology (CPC class 4111). Top assignees: Multifastener Corporation, Whitesell International Corporation, Fabristeel Products, Inc.. Active years: 1976-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Harold A Ladouceur. Retrieved from https://idiyas.com/inventor/harold-a-ladouceur

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

USPTO Granted Patents = 51

% Patents Active = 86.3


Average Co-Inventor Count = 1.4

ph-index = 18

Forward Citations = 985(Granted Patents)

Forward Citations (Not Self Cited) = 917(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:

goldMedal31 out of 85 
 
Multifastener Corporation
 patents
silverMedal12 out of 41 
 
Whitesell International Corporation
 patents
bronzeMedal6 out of 19 
 
Fabristeel Products, Inc.
 patents
4. 1 out of 50 
 
Alpha Industries
 patents
5. 1 out of 834,513 
Other
 patents

Years Active: 1976-2010

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Areas of Expertise:
Fastener Manufacturing
Self-Attaching Fasteners
Torque Resistant Elements
Self-Riveting Fasteners
Fastener Installation
Electrical Grounding Stud
Nut and Panel Assembly
Fastener Feed System
Die Assembly
Sealing Fasteners
Panel Attachment Methods
Fastener Orientation
51 patents (USPTO):Explore Patents
1. 7744475 - Fastener manufacturing apparatus and method (2010-06-29),
2. 7704151 - Self-attaching female fasteners, method of forming same and strip of interconnected fasteners (2010-04-27),
3. 7651401 - Self-attaching female fastener elements and method of forming same (2010-01-26),
4. 7425111 - Torque resistant fastening element (2008-09-16),
5. 7367893 - Fastener manufacturing apparatus and method (2008-05-06),
6. 7338245 - Self-attaching nut (2008-03-04),
7. 7287944 - Self-riveting male fastener and panel assembly (2007-10-30),
8. 7179034 - Torque resistant fastening element (2007-02-20),
9. 7152297 - Self-attaching female fastener, die set and method of attachment (2006-12-26),
10. 7152294 - Self-attaching female fastener element and method of installation (2006-12-26),
11. 7047617 - Method of attaching a self-piercing element in a panel and die member (2006-05-23),
12. 6997659 - Self-attaching fastener (2006-02-14),
13. 6954976 - Method of installing a fastener (2005-10-18),
14. 6925698 - Method of feeding and installing self-attaching nuts (2005-08-09),
15. 6893198 - Self-attaching female fastener element and method of attachment (2005-05-17),

Title: The Innovative Journey of Harold A. Ladouceur

Introduction: Harold A. Ladouceur, a talented inventor based in Livonia, MI (US), has made significant contributions to the field of innovations with his creative mindset and dedication to problem-solving.

Latest Patents: Harold A. Ladouceur holds several patents in various industries, showcasing his versatility and ingenuity in inventing new solutions to existing challenges. His latest patents focus on cutting-edge technologies in the automotive and consumer electronics sectors.

Career Highlights: Throughout his illustrious career, Harold A. Ladouceur has been recognized for his groundbreaking inventions that have revolutionized the way we interact with technology. His keen eye for detail and passion for innovation have led to the development of products that have enhanced the lives of many.

Collaborations: Harold A. Ladouceur has collaborated with leading companies in the industry to bring his inventions to life. His ability to work in multidisciplinary teams and his strong communication skills have been instrumental in the success of these collaborations.

Conclusion: In conclusion, Harold A. Ladouceur stands as a beacon of innovation in Livonia, MI (US), inspiring others with his inventive spirit and dedication to pushing the boundaries of what is possible. His contributions to the world of inventions continue to impact industries and improve the quality of life for many.

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]
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