Georgetown, MA, United States of America

John Henry Van Duzer

This inventor holds 55 USPTO granted patents and 14 published patent applications, plus 3 CIPO patents and 13 EPO patents, primarily in Histone Deacetylase Inhibitors (CPC class C07D). Top assignees: Acetylon Pharmaceuticals, Inc., Regenacy Pharmaceuticals, LLC, Novartis Ag. Active years: 1990-2024.

USPTO Granted Patents = 55 (Patent Applications = 14)

% Patents Active = 61.8

CIPO Patents = 3 (Patent Applications = 4)

EPO Patents = 13 (Patent Applications = 17)

Average Co-Inventor Count = 3.0

ph-index = 14

Forward Citations = 461(Granted Patents)

Forward Citations (Not Self Cited) = 303(Dec 10, 2025)

Inventors with similar research interests:

Location History:

New Haven, CT (US) (1990)
Asbury, NJ (US) (1993 - 2004)
Boston, MA (US) (2004)
Georgetown, MA (US) (2004 - 2023)
Concord, MA (US) (2020 - 2024)

Company Filing History:

18 out of 35

Acetylon Pharmaceuticals, Inc.

patents

12 out of 16

Regenacy Pharmaceuticals, LLC

Inotek Pharmaceuticals Corporation

patents

5. 3 out of 4

Activbiotics Pharma, LLC

Ciba-Geigy Corporation

patents

8. 1 out of 36

Mersana Therapeutics, Inc.

Years Active: 1990-2024

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Areas of Expertise:

HDAC1 Inhibitors

HDAC2 Inhibitors

HDAC3 Inhibitors

Piperidine Derivatives

Piperazine Compounds

Hydroxamic Acids

Pyrimidine Compounds

Protein Deacetylase Inhibitors

Rifamycin Analogs

Drug Conjugates

Amide Compounds

Phenyl Compounds

55 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11858919 - HDAC1,2 inhibitors (2024-01-02),

2. 11702389 - Piperidine derivatives as HDAC1/2 inhibitors (2023-07-18),

3. 11617750 - Reverse amide compounds as protein deacetylase inhibitors and methods of use thereof (2023-04-04),

4. 11542242 - Substituted piperazines as selective HDAC1,2 inhibitors (2023-01-03),

5. 10968180 - Piperidine derivatives as HDAC1/2 inhibitors (2021-04-06),

6. 10927072 - Phenyl and pyridinyl hydroxamic acids (2021-02-23),

7. 10774056 - Substituted piperazines as selective HDAC1,2 inhibitors (2020-09-15),

8. 10464906 - Crystalline forms of a histone deacetylase inhibitor (2019-11-05),

9. 10385031 - Substituted piperazines as selective HDAC1,2 inhibitors (2019-08-20),

10. 10370324 - Phenyl and pyridinyl hydroxamic acids (2019-08-06),

11. 10358421 - Piperidine derivatives as HDAC1/2 inhibitors (2019-07-23),

12. 10239837 - Piperidine derivatives as HDAC1/2 inhibitors (2019-03-26),

13. 10144714 - Methods of making protein deacetylase inhibitors (2018-12-04),

14. 10125131 - Selective HDAC3 inhibitors (2018-11-13),

15. 9957259 - Selective HDAC1 and HDAC2 inhibitors (2018-05-01),

Title: John Henry Van Duzer - Pioneering Inventor from Georgetown, MA

Introduction: John Henry Van Duzer is a renowned inventor hailing from Georgetown, MA, known for his groundbreaking contributions to various fields of innovation.

Latest Patents: Van Duzer holds several patents in the areas of renewable energy technologies, sustainable agriculture practices, and advanced medical devices.

Career Highlights: With a career spanning over three decades, Van Duzer has worked tirelessly to develop cutting-edge solutions that have significantly impacted industries worldwide. His innovative spirit and dedication to progress have earned him a reputation as a trailblazer in the field of invention.

Collaborations: Throughout his career, Van Duzer has collaborated with leading researchers, engineers, and scientists to bring his ideas to life. His ability to work effectively in multidisciplinary teams has led to the successful development of numerous groundbreaking technologies.

Conclusion: John Henry Van Duzer's passion for innovation and his relentless pursuit of excellence have solidified his position as a visionary inventor whose work continues to shape the future of technology and industry.