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For the Inventor, By the Inventor

Lexington, KY, United States of America

David Emerson Greer

This inventor holds 33 USPTO granted patents and 4 published patent applications and 1 EPO patent, primarily in Inkjet Technology. Top assignees: Lexmark International, Inc., Square D Company. Active years: 1995-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David Emerson Greer. Retrieved from https://idiyas.com/inventor/david-emerson-greer

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

Calculating rank
USPTO Granted Patents = 33 

% Patents Active = 75.8

 

Average Co-Inventor Count = 2.7

ph-index = 10

Forward Citations = 310(Granted Patents)


Company Filing History:

goldMedal22 out of 3,046 
 
Lexmark International, Inc.
 patents
silverMedal11 out of 1,005 
 
Square D Company
 patents

Years Active: 1995-2012

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Areas of Expertise:
Micro-Fluid Ejection
Ink Reservoirs
Printhead Assembly
Fluid Ejection Device
Ink Cartridge Venting
Multi-Color Ink
Filtration Systems
Switch Mechanisms
Modular Design
Cartridge Retainer
Air Diffusion Vents
Frictional Sheet Mover
33 patents (USPTO):Explore Patents
1. 8132904 - Filter/wicking structure for micro-fluid ejection head (2012-03-13),
2. D650420 - Narrow ink tank with serpentine air vent (2011-12-13),
3. D650419 - Single reservoir tank with serpentine air vent (2011-12-13),
4. D650418 - Tri-color tank with serpentine air vents (2011-12-13),
5. 8066363 - Printhead filter systems and methods for manufacturing the same (2011-11-29),
6. 7905572 - Apparatus for mounting a removable ink tank in an imaging apparatus (2011-03-15),
7. 7549736 - Printhead assembly having ink flow channels to accommodate offset chips (2009-06-23),
8. 7543912 - Unitary wick retainer and biasing device retainer for micro-fluid ejection head replaceable cartridge (2009-06-09),
9. 7445323 - Ink cartridge venting (2008-11-04),
10. 7438397 - Methods and devices for purging gases from an ink reservoir (2008-10-21),
11. 7290871 - Ink cartridge with pocketed lid (2007-11-06),
12. 7267431 - Multi-fluid ejection device (2007-09-11),
13. 7261398 - Inkjet ink tank with integral priming piston (2007-08-28),
14. 7258434 - Inkjet printheads having multiple label placement positions for air diffusion vents (2007-08-21),
15. 7147314 - Single piece filtration for an ink jet print head (2006-12-12),

Title: **David Emerson Greer: Innovator in Micro-fluid Technology**

Introduction

David Emerson Greer is a notable inventor based in Lexington, KY, with an impressive portfolio comprising 33 patents. His contributions to the field of micro-fluid technology have made a significant impact on various applications, showcasing his innovative spirit and technical expertise.

Latest Patents

Among his latest patents is a design for a **Filter/Wicking Structure for Micro-fluid Ejection Head**. This invention incorporates a molded, non-fibrous wicking and filtration structure, which is fixedly attached to a filtered fluid reservoir. This innovative design ensures efficient flow of filtered fluid to the micro-fluid ejection head. Another notable patent is the **Tri-Color Tank with Serpentine Air Vents**, which presumably improves air circulation and fluid dynamics in various applications.

Career Highlights

Throughout his career, David has made substantial contributions while working for well-known companies such as Lexmark International, Inc. and Square D Company. His experience in these organizations has been pivotal in refining his skills and knowledge in the field of innovation.

Collaborations

David has collaborated with esteemed colleagues, including James Daniel Anderson, Jr. and Terry A. Cassity. These partnerships have further fueled creativity and advancement in their respective projects.

Conclusion

David Emerson Greer's inventive work, particularly in micro-fluid technology, continues to inspire and drive innovation within the industry. His extensive patent portfolio is a testament to his dedication and talent as an inventor, making him a noteworthy figure in the realm of technology and inventions.

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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