Mark L. Allen

Person

Brooklyn, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Security hardware for doors
- Patent number 4,809,400
- Issue date Mar 7, 1989
- Mark L. Allen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Security device for hinge side of a door
- Patent number 4,771,506
- Issue date Sep 20, 1988
- Mark L. Allen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Safe relocking system
- Patent number 4,754,629
- Issue date Jul 5, 1988
- Mark L. Allen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Bicycle lock
- Patent number 4,708,004
- Issue date Nov 24, 1987
- Mark L. Allen
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Handcuffs
- Patent number 4,697,441
- Issue date Oct 6, 1987
- Mark L. Allen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
High security cylinder lock
- Patent number 4,679,418
- Issue date Jul 14, 1987
- Mark L. Allen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Door hinge with pin member for engaging wall structure
- Patent number 4,656,691
- Issue date Apr 14, 1987
- Mark L. Allen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
High security cylinder operated deadbolt lock
- Patent number 4,593,546
- Issue date Jun 10, 1986
- Mark L. Allen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Strike plate and hinge for a high security door system
- Patent number 4,547,009
- Issue date Oct 15, 1985
- Mark L. Allen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Mark L. Allen

Person

Patents Grantslast 30 patents

Security hardware for doors

Security device for hinge side of a door

Safe relocking system

Bicycle lock

Handcuffs

High security cylinder lock

Door hinge with pin member for engaging wall structure

High security cylinder operated deadbolt lock

Strike plate and hinge for a high security door system