San Carlos, CA, United States of America

Donald A Zehnder

This inventor holds 21 USPTO granted patents and 6 published patent applications and 3 EPO patents, primarily in Electroluminescent Devices. Top assignees: Life Technologies Corporation, Nanosys, Inc., Quantum Dot Corporation. Active years: 2001-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Donald A Zehnder. Retrieved from https://idiyas.com/inventor/donald-a-zehnder

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

USPTO Granted Patents = 21 (Patent Applications = 6)

% Patents Active = 95.2

EPO Patents = 3 (Patent Applications = 9)

Average Co-Inventor Count = 3.7

ph-index = 7

Forward Citations = 656(Granted Patents)

Company Filing History:

5 out of 1,896

Life Technologies Corporation

Quantum Dot Corporation

Invitrogen Corporation

patents

Years Active: 2001-2026

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Areas of Expertise:

Quantum Dots

Electroluminescent Devices

Nanostructure Inks

Ligands

Nanoparticles

Semiconductor Nanocrystals

Hybrid Transport Layers

Flow Synthesis

Detection Methods

Compositionally Engineered Properties

Flexible Devices

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12565613 - Quantum dots with donor-acceptor ligands (2026-03-03),

2. 12495663 - Flexible electroluminescent devices (2025-12-09),

3. 12146089 - Nanostructure ink compositions for inkjet printing (2024-11-19),

4. 12010862 - Electroluminescent devices with hybrid organic-inorganic transport layers (2024-06-11),

5. 11555149 - Nanostructure ink compositions for inkjet printing (2023-01-17),

6. 11380863 - Flexible electroluminescent devices (2022-07-05),

7. 11268022 - Nanostructures with inorganic ligands for electroluminescent devices (2022-03-08),

8. 11041071 - Peg-based ligands with enhanced dispersibility and improved performance (2021-06-22),

9. 10790411 - Quantum dot LED with spacer particles (2020-09-29),

10. 9263638 - Preparation of stable, bright luminescent nanoparticles having compositionally engineered properties (2016-02-16),

11. 8834628 - Method of semiconductor nanocrystal synthesis (2014-09-16),

12. 8603362 - Preparation of stable, bright luminescent nanoparticles having compositionally engineered properties (2013-12-10),

13. 8287761 - Preparation of stable, bright luminescent nanoparticles having compositionally engineered properties (2012-10-16),

14. 7695642 - Preparation of stable, bright luminescent nanoparticles having compositionally engineered properties (2010-04-13),

15. 7172791 - Luminescent nanoparticles and methods for their preparation (2007-02-06),

Title: The Innovative Contributions of Donald A. Zehnder

Introduction

Donald A. Zehnder is a prominent inventor based in San Carlos, CA, known for his significant contributions to the field of nanotechnology. With a total of 21 patents to his name, Zehnder has made remarkable advancements that have impacted various industries, particularly in the realm of flexible electronics and inkjet printing.

Latest Patents

Among his latest patents, Zehnder has developed nanostructure ink compositions specifically designed for inkjet printing. This invention focuses on creating nanostructure compositions that include at least one organic solvent, a population of nanostructures with a core and shell structure, and a poly(alkylene oxide) additive. These compositions demonstrate improved solubility in organic solvents, enhancing their suitability for inkjet printing applications. Additionally, he has worked on flexible electroluminescent devices, which feature a device stack supported by a flexible substrate. This innovative design includes a quantum dot film that produces light and a patterned insulating layer that controls the emission of light through electrically active regions.

Career Highlights

Throughout his career, Zehnder has been associated with notable companies such as Nanosys, Inc. and Life Technologies Corporation. His work in these organizations has allowed him to push the boundaries of technology and contribute to groundbreaking advancements in nanotechnology and flexible electronics.

Collaborations

Zehnder has collaborated with esteemed colleagues, including Joseph A. Treadway and Marc D. Schrier. These partnerships have fostered an environment of innovation and creativity, leading to the development of cutting-edge technologies.

Conclusion

Donald A. Zehnder's contributions to the fields of nanotechnology and flexible electronics are noteworthy and continue to influence the industry. His innovative patents and collaborations highlight his commitment to advancing technology and improving existing processes.

Profile summary based on public USPTO records.