Holger Janssen

Person

Richmond, CA

People

Patents Grantslast 30 patents

Information Patent Grant
System and method for telephone operation in quiet mode
- Patent number 9,954,999
- Issue date Apr 24, 2018
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for telephone operation in quiet mode
- Patent number 9,137,351
- Issue date Sep 15, 2015
- VTech Telecommunications Limited
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for cordless handset registration
- Patent number 8,331,931
- Issue date Dec 11, 2012
- VTech Telecommunications Limited
- Stephen R. Whitesell
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method to adjust caller ID information
- Patent number 8,213,595
- Issue date Jul 3, 2012
- VTech Communications Limited
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for integrating heterogeneous telephone mailboxes
- Patent number 7,856,088
- Issue date Dec 21, 2010
- VTech Telecommunications Limited
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for providing a local time of far end on telephon...
- Patent number 7,474,744
- Issue date Jan 6, 2009
- VTech Telecommunications Limited
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for telephone operation in quiet mode
- Patent number 7,397,908
- Issue date Jul 8, 2008
- VTech Telecommunications Limited
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods for exchanging data and audio between cellular...
- Patent number 7,363,045
- Issue date Apr 22, 2008
- VTech Telecommunications Limited
- Gary Rogalski
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone base unit having dynamically configurable software
- Patent number 6,983,144
- Issue date Jan 3, 2006
- VTech Telecommunications Limited
- Holger Janssen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Remote management of an external phonebook
- Patent number 6,950,652
- Issue date Sep 27, 2005
- VTech Telecommunications Limited
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for conducting a conference call between a wireless line...
- Patent number 6,937,854
- Issue date Aug 30, 2005
- VTech Telecommunications, Limited
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrostatic discharge protection shield device
- Patent number 6,758,690
- Issue date Jul 6, 2004
- VTech Telecommunications Limited
- Yat Shu (Damien) Yu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR TELEPHONE OPERATION IN QUIET MODE
- Publication number 20160006859
- Publication date Jan 7, 2016
- VTech Telecommunications Limited
- HOLGER JANSSEN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD TO ADJUST CALLER ID INFORMATION
- Publication number 20090034705
- Publication date Feb 5, 2009
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR EXTRAPOLATING END-OF-LIFE RETURN RATE FROM SALES AND RET...
- Publication number 20080313009
- Publication date Dec 18, 2008
- Holger Janssen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SYSTEM AND METHOD FOR TELEPHONE OPERATION IN QUIET MODE
- Publication number 20080267381
- Publication date Oct 30, 2008
- VTech Telecommunications Limited
- HOLGER JANSSEN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for cordless handset registration
- Publication number 20070123256
- Publication date May 31, 2007
- VTECH TELECOMMUNICATIONS LIMITED,Hong Kong
- Stephen R. Whitesell
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for integrating heterogeneous telephone mailboxes
- Publication number 20060146989
- Publication date Jul 6, 2006
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Initiation of call forwarding for wireless telephone
- Publication number 20060072591
- Publication date Apr 6, 2006
- Gary Rogalski
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for providing a local time of far end on telephon...
- Publication number 20050175172
- Publication date Aug 11, 2005
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for telephone operation in quiet mode
- Publication number 20050175158
- Publication date Aug 11, 2005
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Telephone base unit having dynamically configurable software
- Publication number 20040203738
- Publication date Oct 14, 2004
- Holger Janssen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Remote management of an external phonebook
- Publication number 20040131173
- Publication date Jul 8, 2004
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTROSTATIC DISCHARGE PROTECTION SHIELD DEVICE
- Publication number 20040132325
- Publication date Jul 8, 2004
- Yat Shun Yu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Systems and methods for exchanging data and audio between cellular...
- Publication number 20040132500
- Publication date Jul 8, 2004
- Gary Rogalski
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Apparatus for conducting a conference call between a wireless line...
- Publication number 20030157929
- Publication date Aug 21, 2003
- Holger Janssen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Holger Janssen

Person

Patents Grantslast 30 patents

System and method for telephone operation in quiet mode

System and method for telephone operation in quiet mode

System and method for cordless handset registration

System and method to adjust caller ID information

System and method for integrating heterogeneous telephone mailboxes

System and method for providing a local time of far end on telephon...

System and method for telephone operation in quiet mode

Systems and methods for exchanging data and audio between cellular...

Telephone base unit having dynamically configurable software

Remote management of an external phonebook

Apparatus for conducting a conference call between a wireless line...

Electrostatic discharge protection shield device

Patents Applicationslast 30 patents

SYSTEM AND METHOD FOR TELEPHONE OPERATION IN QUIET MODE

SYSTEM AND METHOD TO ADJUST CALLER ID INFORMATION

METHOD FOR EXTRAPOLATING END-OF-LIFE RETURN RATE FROM SALES AND RET...

SYSTEM AND METHOD FOR TELEPHONE OPERATION IN QUIET MODE

System and method for cordless handset registration

System and method for integrating heterogeneous telephone mailboxes

Initiation of call forwarding for wireless telephone

System and method for providing a local time of far end on telephon...

System and method for telephone operation in quiet mode

Telephone base unit having dynamically configurable software

Remote management of an external phonebook

ELECTROSTATIC DISCHARGE PROTECTION SHIELD DEVICE

Systems and methods for exchanging data and audio between cellular...

Apparatus for conducting a conference call between a wireless line...