Stephen D Panshin

This inventor holds 66 USPTO granted patents and 15 published patent applications, plus 9 CIPO patents and 32 EPO patents, primarily in Logic Circuitry (CPC class G06F). Top assignees: Hewlett-Packard Development Company, L.p., Hewlett-Packard Development, L.p., Stmicroelectronics International N.v.. Active years: 2012-2026.

USPTO Granted Patents = 66 (Patent Applications = 15)

% Patents Active = 90.9

CIPO Patents = 9 (Patent Applications = 9)

EPO Patents = 32 (Patent Applications = 53)

Average Co-Inventor Count = 2.9

ph-index = 6

Forward Citations = 219(Granted Patents)

Forward Citations (Not Self Cited) = 117(Dec 10, 2025)

Inventors with similar research interests:

Company Filing History:

64 out of 27,650

Hewlett-Packard Development Company, L.p.

patents

1 out of 89

Hewlett-Packard Development, L.p.

patents

1 out of 1,226

Stmicroelectronics International N.v.

patents

Years Active: 2012-2026

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Areas of Expertise:

Authentication

Logic Circuitry

Digital Signature

Public Key Service

Message Authentication

Supply Authentication

Timing Challenge Response

Print Cartridges

Firmware-Inaccessible Key Storage

Sensor Data Communications

Replicable Print Cartridge

Data Protection

66 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12695617 - Logic circuitry packages storing tokens (2026-07-28),

2. 12687915 - Secure controllers for replaceable print apparatus components (2026-07-21),

3. 12587367 - Authentication of logic circuitry packages (2026-03-24),

4. 12579287 - Chaining message authentication codes (2026-03-17),

5. 12562920 - Digital signature (2026-02-24),

6. 12556407 - Digital signature (2026-02-17),

7. 12476813 - Public key service for message authentication (2025-11-18),

8. 12445306 - Hash chain of blocks of public keys for messages (2025-10-14),

9. 12425231 - Logic circuitry (2025-09-23),

10. 12406077 - Logic circuitry package for print apparatus (2025-09-02),

11. 12240245 - Logic circuitry (2025-03-04),

12. 12050703 - Method of performing an authentication method and a pairing of a peripheral device to a companion device (2024-07-30),

13. 11783023 - Digitally signed data (2023-10-10),

14. 11738562 - Logic circuitry (2023-08-29),

15. 11691429 - Supply authentication via timing challenge response (2023-07-04),

Title: The Innovative Journey of Stephen D Panshin

Introduction: Stephen D Panshin, a talented inventor based in Corvallis, Oregon, has made significant contributions to the field of innovations with his creative mind and dedication to progress.

Latest Patents: Stephen D Panshin holds several patents in various industries, showcasing his versatility and ingenuity in inventing new solutions to complex problems.

Career Highlights: Throughout his career, Stephen D Panshin has been recognized for his groundbreaking inventions that have had a positive impact on society. His commitment to pushing the boundaries of what is possible has led to numerous successful projects.

Collaborations: Stephen D Panshin has collaborated with leading experts in the field, including top researchers, engineers, and scientists, to bring his inventions to life. His ability to work effectively in a team setting has been instrumental in the success of his projects.

Conclusion: Stephen D Panshin's passion for innovation and his relentless pursuit of excellence have established him as a prominent figure in the world of inventors. His remarkable achievements continue to inspire future generations to think outside the box and strive for greatness in the realm of inventions.