Thomas Marshall Congdon

This inventor holds 119 USPTO granted patents and 18 published patent applications, plus 4 CIPO patents and 25 EPO patents, primarily in Ground Engaging Tools (CPC class E02F3-8152). Top assignee: Caterpillar Inc.. Active years: 2008-2026.

USPTO Granted Patents = 119 (Patent Applications = 18)

% Patents Active = 94.1

CIPO Patents = 4 (Patent Applications = 13)

EPO Patents = 25 (Patent Applications = 35)

Average Co-Inventor Count = 2.2

ph-index = 16

Forward Citations = 963(Granted Patents)

Forward Citations (Not Self Cited) = 708(Dec 10, 2025)

Inventors with similar research interests:

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Company Filing History:

119 out of 9,779

Caterpillar Inc.

patents

Years Active: 2008-2026

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Areas of Expertise:

Cutting Edge Bit

Retention System

Ground Engaging Tools

Wear Indicator

Blade Assembly

Adapter Board

Serrated Blade

Tool Bit

Bucket Shroud

Drafted Tool Bit

Carbide Cutter Bit

Rotation Security

119 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12747566 - Shroud retention system for a work tool (2026-09-29),

2. 12703964 - Tooth assemblies for ground engaging tools (2026-08-11),

3. D1132976 - Cutting edge for a motor grader (2026-07-07),

4. D1132975 - Cutting edge for a motor grader (2026-07-07),

5. D1124045 - Cutting edge bit for a motor grader (2026-04-28),

6. 12601160 - Retention mechanism for ground engaging tools (2026-04-14),

7. 12601159 - Retention system for attaching tool bits to a blade assembly (2026-04-14),

8. D1121689 - Cutting edge bit for a motor grader (2026-04-07),

9. 12523019 - Drafted tool bit and blade assembly (2026-01-13),

10. 12516509 - Lock packing prevention for a bit (2026-01-06),

11. D1107761 - Cutting edge bit for a motor grader (2025-12-30),

12. D1107078 - Cutting edge bit for a motor grader (2025-12-23),

13. D1107077 - Tip for a ground engaging machine implement (2025-12-23),

14. D1104079 - Tip for a ground engaging machine implement (2025-12-02),

15. D1104078 - Tip for a ground engaging machine implement (2025-12-02),

Certainly! Here is the article about inventor Thomas Marshall Congdon:

Title: The Innovative Journey of Thomas Marshall Congdon

Introduction: Thomas Marshall Congdon, a prolific inventor based in Dunlap, IL (US), has made significant contributions to the field of engineering with a remarkable total of 96 patents to his name.

Latest Patents:

1. *Bucket Shroud*: This patent showcases Mr. Congdon's ingenuity in creating a bucket shroud.

2. *Adapter Board with Splined Bushing*: Demonstrating an innovative adapter board design, this patent highlights his technical expertise.

3. *Blade Assembly with Shank Receiving Bores*: A blade assembly concept that features a unique shank receiving bores design, showcasing Mr. Congdon's attention to detail.

Career Highlights: Working at Caterpillar Inc., a renowned company in the engineering sector, Thomas Marshall Congdon has demonstrated his ability to push the boundaries of innovation and engineering excellence.

Collaborations: Mr. Congdon's work has been enriched through collaborations with colleagues such as Nathan Richard Bjerke and David Bruno Parzynski, Jr., showcasing his ability to work effectively in a team environment.

Conclusion: In conclusion, Thomas Marshall Congdon's journey as an inventor is characterized by a relentless pursuit of innovation, resulting in numerous patents that have left a lasting impact on the engineering industry.