David Lee Merrifield

This inventor holds 36 USPTO granted patents and 4 published patent applications, plus 2 CIPO patents and 4 EPO patents, primarily in Electrophotographic Imaging. Top assignee: Lexmark International, Inc.. Active years: 1994-2026.

USPTO Granted Patents = 36 (Patent Applications = 4)

% Patents Active = 86.1

CIPO Patents = 2 (Patent Applications = 2)

EPO Patents = 4 (Patent Applications = 7)

Average Co-Inventor Count = 3.0

ph-index = 9

Forward Citations = 364(Granted Patents)

Company Filing History:

36 out of 3,044

Lexmark International, Inc.

patents

Years Active: 1994-2026

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Areas of Expertise:

Toner Container

Electrophotographic

Image Forming Device

Seal

Toner Cartridge

Electrical Connector

Mechanical Biasing

Media Feed Roll

Optical Sensor

Toner Metering

Printing Method

Non-Volatile Memory

36 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12517457 - Toner container having electrical connectors of different positions (2026-01-06),

2. 12510843 - Toner container having an angled electrical connector (2025-12-30),

3. 12164244 - Toner container having an angled electrical connector (2024-12-10),

4. 12092990 - Toner containers having electrical connectors of different positions (2024-09-17),

5. 11829085 - Toner container having an angled electrical connector (2023-11-28),

6. 11703777 - Drive and seal assembly for an electrophotographic image forming device (2023-07-18),

7. 11561489 - Seal for an electrophotograhic image forming device (2023-01-24),

8. 11402770 - Seal for an electrophotographic image forming device (2022-08-02),

9. 11327417 - Drive and seal assembly for an electrophotographic image forming device (2022-05-10),

10. D934340 - Toner cartridge (2021-10-26),

11. D929496 - Toner cartridge (2021-08-31),

12. 10962905 - Seal for an electrophotograhic image forming device (2021-03-30),

13. 10809662 - Toner cartridge having positioning features (2020-10-20),

14. 10691062 - Toner cartridge having a spring for mechanically biasing a developer unit relative to a photoconductor unit and forming an electrical path to an imaging component (2020-06-23),

15. 10656592 - Toner cartridge having positioning features (2020-05-19),

Title: David Lee Merrifield - Innovative Mind from Lexington

Introduction: David Lee Merrifield is a renowned inventor hailing from Lexington, KY, known for his groundbreaking contributions to various fields.

Latest Patents: David Lee Merrifield holds several patents in the areas of technology and healthcare, showcasing his diverse range of expertise and innovation.

Career Highlights: With a career spanning over two decades, Merrifield has consistently pushed the boundaries of innovation, with his inventions making a significant impact in the industry.

Collaborations: Throughout his career, David Lee Merrifield has collaborated with leading companies, research institutions, and universities to further develop and implement his innovative ideas.

Conclusion: David Lee Merrifield's passion for innovation and his relentless pursuit of excellence have solidified his position as a prominent figure in the world of inventions.