Peter H Field

This inventor holds 34 USPTO granted patents and 3 published patent applications, plus 12 CIPO patents and 6 EPO patents, primarily in Cylinder Lock Technology. Top assignees: Medeco Security Locks, Inc., Assa Abloy High Security Group Inc., Other. Active years: 1991-2026.

USPTO Granted Patents = 34 (Patent Applications = 3)

% Patents Active = 91.2

CIPO Patents = 12 (Patent Applications = 2)

EPO Patents = 6 (Patent Applications = 6)

Average Co-Inventor Count = 1.8

ph-index = 15

Forward Citations = 580(Granted Patents)

Location History:

Montebelleo, CA (US) (1997)
Las Vegas, NV (US) (1998)
Thousand Oaks, CA (US) (2006)
Salem, VA (US) (1991 - 2024)

Company Filing History:

22 out of 58

Medeco Security Locks, Inc.

patents

9 out of 10

Assa Abloy High Security Group Inc.

patents

2 out of 834,411

Other

patents

where one patent can have more than one assignee

Years Active: 1991-2026

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Areas of Expertise:

Cylinder Lock

Key Blanks

Electromechanical Lock

Hierarchical System

Lock Assembly

Rotating Pin Tumbler

Flat-Bladed Key

Auxiliary Locking Mechanism

Removable Core

Pin Tumblers

Dropbolt Lock

Key Mechanisms

34 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12742342 - Key and key blanks operable in vertically and horizontally oriented keyways (2026-09-22),

2. 12196000 - Cylinder lock with multiple, supplemental locking elements and associated key (2025-01-14),

3. 12077983 - Key and key blanks operable in vertically and horizontally oriented keyways (2024-09-03),

4. 11624206 - Lock cylinder and key with multiple, supplemental locking elements (2023-04-11),

5. 11280111 - Operating a lock cylinder with multiple, supplemental locking elements (2022-03-22),

6. 9920551 - Electromechanical cylinder lock (2018-03-20),

7. 9771738 - Flat-bladed key (2017-09-26),

8. 9482031 - Cylinder lock including multiple cooperating sidebars for controlling the lock (2016-11-01),

9. 9416561 - Cylinder lock configured to be operated by a flat-bladed key (2016-08-16),

10. 9359793 - Cylinder lock with internal slider and key therefore (2016-06-07),

11. 9045915 - Key with movable element disposed within key blade (2015-06-02),

12. 8186194 - Cylinder lock and auxiliary locking mechanism (2012-05-29),

13. 7895865 - Cylinder lock assembly with a tailpiece rotationally coupled to the cylinder plug (2011-03-01),

14. 7797973 - Hierarchical cylinder lock systems (2010-09-21),

15. 7788956 - Lock, key blank, and key of a hierarchical lock system (2010-09-07),

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