Charles W Kaufman

USPTO Granted Patents = 73 (Patent Applications = 5)

CIPO Patents = 1 (Patent Applications = 1)

EPO Patents = 2 (Patent Applications = 1)

Average Co-Inventor Count = 2.6

ph-index = 26

Forward Citations = 2,973(Granted Patents)

Forward Citations (Not Self Cited) = 2,934(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Northboro, MA (US) (1989 - 1997)
Northborough, MA (US) (1992 - 2008)
Sammamish, WA (US) (2009 - 2016)
Redmond, WA (US) (2014 - 2024)

Company Filing History:

20 out of 7,356

Emc IP Holding Company LLC

patents

17 out of 2,297

Digital Equipment Corporation

patents

15 out of 54,719

Microsoft Technology Licensing, LLC

patents

4. 11 out of 164,197

International Business Machines Corporation

patents

5. 4 out of 6

Digital Equipment Corp., Patent Law Group

Lotus Development Coporation

patent

8. 1 out of 15

Lotus Development Corporation

patents

9. 1 out of 139

Cabletron Systems, Inc.

patents

Years Active: 1989-2025

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Areas of Expertise:

Encrypted Storage

Biometric Authentication

Data Deduplication

Secure Communications

Distributed Ledger

Cloud Security

Access Control

Privacy Preservation

Data Integrity

Single Sign-On

Password Management

Security Policies

73 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12346267 - Systems and methods of supporting deduplication and compression of encrypted storage volumes (2025-07-01),

2. 12288214 - Secure, low-cost, privacy-preserving biometric card (2025-04-29),

3. 12022003 - Safe use of legacy digital signatures in a post-quantum world (2024-06-25),

4. 11831634 - Managing trusted communications between server and clients (2023-11-28),

5. 11720270 - Client-side compression (2023-08-08),

6. 11595190 - Encrypted data storage system (2023-02-28),

7. 11550919 - Prioritizing patching of vulnerable components (2023-01-10),

8. 11436345 - Protection of secret client data in a multiple client data deduplication environment (2022-09-06),

9. 11435907 - Ensuring data authenticity using notary as a service (2022-09-06),

10. 11374769 - Efficient and secure distributed ledger maintenance (2022-06-28),

11. 11321443 - Password resetting system and method (2022-05-03),

12. 11290276 - Method and system for a signed document validity service (2022-03-29),

13. 11240005 - Method and system for querying a secure database located on an untrusted device (2022-02-01),

14. 11153094 - Secure data deduplication with smaller hash values (2021-10-19),

15. 11128460 - Client-side encryption supporting deduplication across single or multiple tenants in a storage system (2021-09-21),

Title: The Innovative Journey of Charles W Kaufman

Introduction: Charles W Kaufman is a renowned inventor based in Redmond, Washington. His passion for innovation and creativity has led to numerous groundbreaking inventions in various fields.

Latest Patents: Charles W Kaufman holds several patents in the areas of technology, healthcare, and consumer products. His latest patents focus on sustainable energy solutions and advanced medical devices.

Career Highlights: With a career spanning over two decades, Charles W Kaufman has worked for leading tech companies, research institutions, and startups. His expertise in product development and patent law has been instrumental in bringing his inventions to life.

Collaborations: Throughout his career, Charles W Kaufman has collaborated with top engineers, scientists, and designers to create cutting-edge solutions. His ability to work across disciplines has resulted in successful partnerships and innovative products.

Conclusion: Charles W Kaufman's dedication to pushing the boundaries of innovation continues to inspire the next generation of inventors. His impact on various industries is a testament to his creativity and vision for a better future.

This text is generated by artificial intelligence and may not be accurate.