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St. Charles, MO, United States of America

Donald D Foster

USPTO Granted Patents = 119 (Patent Applications = 2)

CIPO Patents = 26 (Patent Applications = 20)

EPO Patents = 4 (Patent Applications = 1)

Average Co-Inventor Count = 1.7

ph-index = 27

Forward Citations = 2,263(Granted Patents)

Forward Citations (Not Self Cited) = 2,140(Dec 10, 2025)

Inventors with similar research interests:

Company Filing History:

Contico International LLC

Continental Afa Dispensing Company

Continental Sprayers International, Inc.

4. 15 out of 109

Meadwestvaco Calmar Gmbh

Meadwestvaco Clamar, Inc.

Continental Sprayers Internatioal, Inc.

8. 1 out of 110

Silgan Dispensing Systems Corporation

Westrock Dispensing Systems, Inc.

where one patent can have more than one assignee

Years Active: 1991-2018

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Areas of Expertise:

Trigger Sprayer

Foaming Pump

Lotion Pump

Dual Chamber Pump

Ergonomic Design

Child Resistant Closure

Nozzle Assembly

Liquid Dispenser

Valve Systems

Container Closure

Spray Pattern Indexing

Manually Operated Pump

119 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10159997 - Low cost trigger sprayer (2018-12-25),

2. 9579675 - Pre-compression valve systems for trigger sprayers (2017-02-28),

3. 8864052 - Low cost trigger sprayer (2014-10-21),

4. 8469291 - Low cost trigger sprayer (2013-06-25),

5. D653541 - Trigger sprayer cover (2012-02-07),

6. 8104646 - Trigger sprayer having a reduced number of parts and a double tubular valve member (2012-01-31),

7. 7967171 - Air foaming pump trigger sprayer (2011-06-28),

8. 7942291 - Break-away spring and piston rod for a trigger sprayer (2011-05-17),

9. 7780098 - Fan spray pattern indexing nozzle for a trigger sprayer (2010-08-24),

10. 7775406 - Trigger sprayer with venting membrane in protective housing cavity (2010-08-17),

11. 7735688 - Rotating collar and locking and venting closure connector for an air foaming pump dispenser (2010-06-15),

12. 7712636 - Trigger sprayer piston rod with integral spring and pivoting piston connection (2010-05-11),

13. 7677416 - In-line manually operated liquid dispenser with simplified construction (2010-03-16),

14. 7637396 - Trigger sprayer piston rod with integral spring and ball and socket piston connection (2009-12-29),

15. 7571836 - Trigger sprayer with piston rod and spring snap connection (2009-08-11),

Title: Donald D Foster - Innovative Inventor from St. Charles

Introduction: Donald D Foster is a renowned inventor hailing from St. Charles, Missouri, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: Donald D Foster holds several patents in diverse areas, showcasing his versatility and creativity in inventing new solutions to existing problems.

Career Highlights: Throughout his illustrious career, Donald D Foster has consistently pushed the boundaries of innovation, with his inventions making a significant impact in industries such as technology, healthcare, and sustainability.

Collaborations: Donald D Foster has collaborated with leading companies, research institutions, and universities to further develop and commercialize his inventions, demonstrating his ability to work effectively in multidisciplinary teams.

Conclusion: Donald D Foster's passion for innovation and his dedication to creating solutions that improve lives make him a standout figure in the world of inventors, inspiring future generations to pursue their creative ideas.

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