E. F. Johnson Company

Organization

Waseca, MN, US

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
System and method for multicast communications using real time tran...
- Patent number 7,929,475
- Issue date Apr 19, 2011
- E. F. Johnson Company
- Dana Simonson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for multicast communications using real time tran...
- Patent number 7,221,660
- Issue date May 22, 2007
- E.F. Johnson Company
- Dana Simonson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bandwidth management system for a remote repeater network
- Patent number 5,991,309
- Issue date Nov 23, 1999
- E.F. Johnson Company
- Dana J. Jensen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Priority system for a wide area transmission trunked communication...
- Patent number 5,815,799
- Issue date Sep 29, 1998
- E.F. Johnson Company
- Keith W. Barnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Handheld two-way radio with hinged cover
- Patent number D397109
- Issue date Aug 18, 1998
- E.F. Johnson Company
- Jack K. Hockenberry
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Packet radio communication system
- Patent number 5,724,515
- Issue date Mar 3, 1998
- E.F. Johnson Company
- Keith W. Barnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery charger
- Patent number 5,689,171
- Issue date Nov 18, 1997
- E.F. Johnson Company
- Christopher J. Ludewig
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Keypad cover hinge
- Patent number 5,678,206
- Issue date Oct 14, 1997
- E.F. Johnson Company
- Takeshi Ishii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Handheld two-way radio with hinged cover
- Patent number D384059
- Issue date Sep 23, 1997
- E.F. Johnson Company
- Jack K. Hockenberry
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Method and apparatus for a distributive wide area network for a lan...
- Patent number 5,613,196
- Issue date Mar 18, 1997
- E. F. Johnson Company
- Keith W. Barnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Antenna connector for a portable radio
- Patent number 5,577,269
- Issue date Nov 19, 1996
- E.F. Johnson Company
- Christopher J. Ludewig
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for a remote network switch for a land mobile...
- Patent number 5,548,802
- Issue date Aug 20, 1996
- E.F. Johnson Company
- Keith W. Barnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optoelectronic active circuit element
- Patent number 5,510,665
- Issue date Apr 23, 1996
- E. F. Johnson Company
- Jerry J. Conley
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Signaling protocol for a distributive wide area transmission trunke...
- Patent number 5,465,386
- Issue date Nov 7, 1995
- E. F. Johnson Company
- Keith W. Barnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modular networking switch system for a distributive wide area trans...
- Patent number 5,440,759
- Issue date Aug 8, 1995
- E.F. Johnson Company
- Keith W. Barnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optoelectronic active circuit element
- Patent number 5,237,233
- Issue date Aug 17, 1993
- E. F. Johnson Company
- Jerry J. Conley
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Adjustable-output electrical energy source using light-emitting pol...
- Patent number 5,235,232
- Issue date Aug 10, 1993
- E. F. Johnson Company
- Jerry J. Conley
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
High speed data interface for land mobile communication system
- Patent number 5,212,714
- Issue date May 18, 1993
- E. F. Johnson Company
- Mervin L. Grindahl
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for a distributive wide area network for a lan...
- Patent number 5,159,701
- Issue date Oct 27, 1992
- E. F. Johnson Company
- Keith W. Barnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Tritiated light emitting polymer electrical energy source
- Patent number 5,124,610
- Issue date Jun 23, 1992
- E. F. Johnson Company
- Jerry J. Conley
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Method and apparatus for an alternate home channel for a land mobil...
- Patent number 5,040,237
- Issue date Aug 13, 1991
- E. F. Johnson Company
- Keith W. Barnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light emitting polymer electrical energy source
- Patent number 5,008,579
- Issue date Apr 16, 1991
- E. F. Johnson Co.
- Jerry J. Conley
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Graphite trace electrical interconnect
- Patent number 4,889,961
- Issue date Dec 26, 1989
- E. F. Johnson Company
- Jerrold L. Carlson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Data demodulator
- Patent number 4,876,700
- Issue date Oct 24, 1989
- E. F. Johnson Company
- Mervin L. Grindahl
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Remotely interrogated transponder
- Patent number 4,786,903
- Issue date Nov 22, 1988
- E. F. Johnson Company
- Mervin L. Grindahl
- G08 - SIGNALLING
Information Patent Grant
Communications adaptor bracket
- Patent number 4,761,823
- Issue date Aug 2, 1988
- E. F. Johnson Company
- Duane T. Fier
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital frequency detector
- Patent number 4,733,169
- Issue date Mar 22, 1988
- E. F. Johnson Company
- Mervin L. Grindahl
- G01 - MEASURING TESTING
Information Patent Grant
Right angle coaxial connector
- Patent number 4,655,534
- Issue date Apr 7, 1987
- E. F. Johnson Company
- Lloyd C. Stursa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Printed circuit board coaxial connector interface
- Patent number 4,645,288
- Issue date Feb 24, 1987
- E. F. Johnson Company
- Lloyd C. Stursa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Latching mechanism
- Patent number 4,629,227
- Issue date Dec 16, 1986
- E. F. Johnson Company
- Steven G. Peterson
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR MULTICAST COMMUNICATIONS USING REAL TIME TRAN...
- Publication number 20070242670
- Publication date Oct 18, 2007
- E.F. Johnson Company
- Dana Simonson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Trademarklast 30 trademarks

Information Trademark
78562578 - OUR MISSION-YOUR SAFETY
- Serial number 78562578
- Registration number 3804870
- Filing date Feb 8, 2005
- E. F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
78562580 - YOUR CHOICE FOR CRITICAL COMMUNICATIONS
- Serial number 78562580
- Filing date Feb 8, 2005
- E. F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
78562572 - IP25
- Serial number 78562572
- Registration number 3804869
- Filing date Feb 8, 2005
- E. F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
78063337 - NETELLIGENT
- Serial number 78063337
- Filing date May 14, 2001
- E. F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
75135455 - ODIN
- Serial number 75135455
- Filing date Jul 17, 1996
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
75106550 - D-NET
- Serial number 75106550
- Filing date May 20, 1996
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
75038242 - LTR2
- Serial number 75038242
- Filing date Dec 28, 1995
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74623906 - EFJOHNSON
- Serial number 74623906
- Registration number 1971066
- Filing date Jan 20, 1995
- E.F. JOHNSON COMPANY
- 37 - Building construction
Information Trademark
74571438 - INTELLIGENT CHOICES FOR A WIRELESS WORLD
- Serial number 74571438
- Registration number 1994057
- Filing date Sep 9, 1994
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74563104 - CDS
- Serial number 74563104
- Filing date Aug 19, 1994
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74495467 - USERSELECT
- Serial number 74495467
- Registration number 1871598
- Filing date Feb 28, 1994
- E.F. JOHNSON COMPANY
- 38 - Telecommunications
Information Trademark
74430990 - AVENGER
- Serial number 74430990
- Registration number 1886586
- Filing date Aug 31, 1993
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74394993 - WRITE-ON
- Serial number 74394993
- Filing date May 24, 1993
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74387651 - SUMMIT
- Serial number 74387651
- Registration number 1870416
- Filing date May 5, 1993
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74370397 - ACES
- Serial number 74370397
- Registration number 1916715
- Filing date Mar 19, 1993
- E.F. JOHNSON COMPANY
- 35 - Advertising
Information Trademark
74350732 - EFJOHNSON
- Serial number 74350732
- Registration number 1886550
- Filing date Jan 21, 1993
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74350727 - EF JOHNSON
- Serial number 74350727
- Registration number 1899641
- Filing date Jan 21, 1993
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74343823 - JOHNSON
- Serial number 74343823
- Registration number 1826179
- Filing date Dec 28, 1992
- E.F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74342262
- Serial number 74342262
- Registration number 1887803
- Filing date Dec 22, 1992
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74335825 - AUTO-TRAK
- Serial number 74335825
- Filing date Dec 1, 1992
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74329059 - THE PRACTICAL CHOICE
- Serial number 74329059
- Registration number 1843528
- Filing date Nov 6, 1992
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74319515 - DTR
- Serial number 74319515
- Filing date Sep 30, 1992
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74319543 - UD2I
- Serial number 74319543
- Registration number 2034024
- Filing date Sep 30, 1992
- E. F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74312976 - DMR
- Serial number 74312976
- Filing date Sep 10, 1992
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74310761 - D-NET
- Serial number 74310761
- Filing date Sep 3, 1992
- E.F. JOHNSON COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74296996 - ACCUPLOT
- Serial number 74296996
- Filing date Jul 21, 1992
- E.F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74248418 - AUTO-TRAK
- Serial number 74248418
- Filing date Feb 21, 1992
- E.F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74248404 - THE PRACTICAL CHOICE
- Serial number 74248404
- Filing date Feb 21, 1992
- E.F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74238524 - SCORPION
- Serial number 74238524
- Registration number 1810512
- Filing date Jan 15, 1992
- E.F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74174939
- Serial number 74174939
- Registration number 1757573
- Filing date Jun 7, 1991
- E. F. Johnson Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments

E. F. Johnson Company

Organization

Patents Grantslast 30 patents

System and method for multicast communications using real time tran...

System and method for multicast communications using real time tran...

Bandwidth management system for a remote repeater network

Priority system for a wide area transmission trunked communication...

Handheld two-way radio with hinged cover

Packet radio communication system

Battery charger

Keypad cover hinge

Handheld two-way radio with hinged cover

Method and apparatus for a distributive wide area network for a lan...

Antenna connector for a portable radio

Method and apparatus for a remote network switch for a land mobile...

Optoelectronic active circuit element

Signaling protocol for a distributive wide area transmission trunke...

Modular networking switch system for a distributive wide area trans...

Optoelectronic active circuit element

Adjustable-output electrical energy source using light-emitting pol...

High speed data interface for land mobile communication system

Method and apparatus for a distributive wide area network for a lan...

Tritiated light emitting polymer electrical energy source

Method and apparatus for an alternate home channel for a land mobil...

Light emitting polymer electrical energy source

Graphite trace electrical interconnect

Data demodulator

Remotely interrogated transponder

Communications adaptor bracket

Digital frequency detector

Right angle coaxial connector

Printed circuit board coaxial connector interface

Latching mechanism

Patents Applicationslast 30 patents

SYSTEM AND METHOD FOR MULTICAST COMMUNICATIONS USING REAL TIME TRAN...

Trademarklast 30 trademarks

78562578 - OUR MISSION-YOUR SAFETY

78562580 - YOUR CHOICE FOR CRITICAL COMMUNICATIONS

78562572 - IP25

78063337 - NETELLIGENT

75135455 - ODIN

75106550 - D-NET

75038242 - LTR2

74623906 - EFJOHNSON

74571438 - INTELLIGENT CHOICES FOR A WIRELESS WORLD

74563104 - CDS

74495467 - USERSELECT

74430990 - AVENGER

74394993 - WRITE-ON

74387651 - SUMMIT

74370397 - ACES

74350732 - EFJOHNSON

74350727 - EF JOHNSON

74343823 - JOHNSON

74342262

74335825 - AUTO-TRAK

74329059 - THE PRACTICAL CHOICE

74319515 - DTR

74319543 - UD2I

74312976 - DMR

74310761 - D-NET

74296996 - ACCUPLOT

74248418 - AUTO-TRAK

74248404 - THE PRACTICAL CHOICE

74238524 - SCORPION

74174939