IP Library › Assignment 023699/0740
Patent Assignment
Reel/Frame 023699/0740

Change of Name

Recorded: 2009-12-24 Pages: 16
Assignor
Assignee
AKER WIRTH GMBH
KOLNER STR. 71-73, ERKELENZ, 41612, GERMANY
Covered Properties (8)
Method and Machine for Excavating Drifts, Tunnels, Stopes, Caverns or the Like
Patent: 5,340,199 →
Application: 07/946,338 →
Method and Device for Driving Bore-Holes, in the Sea Bed Using a Counterflush Method
Patent: 6,422,324 →
Application: 09/319,657 →
Drilling Tool for the Air-Lifting Process
Patent: 6,405,812 →
Application: 09/685,786 →
Hoisting Gear
Patent: 6,793,203 →
Application: 10/220,367 →
Publication: US 2003/0111653
Draw Works
Patent: 7,232,113 →
Application: 10/506,032 →
Publication: US 2005/0133773
Device for Advancing Drillings in the Ground
Patent: 7,658,244 →
Application: 10/522,483 →
Publication: US 2006/0096784
Device for Drilling a Bore in the Ground
Patent: 7,562,726 →
Application: 10/556,495 →
Publication: US 2008/0047758
Pumping System
Patent: 8,186,977 →
Application: 11/918,310 →
Publication: US 2009/0038852
Related Assignments (9)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Nov 6, 1992
From: PIEFENBRINK, WILFRIED; WEBER, WALTER; HAMBURGER, HERMANN
To: WIRTH MASCHINEN-UND BOHRGERATE-FABRIK GMBH; HDRK MINING RESEARCH LIMITED
Reel/Frame 006461/0436 →
Assignment of Assignor's Interest Aug 6, 1999
From: TIBUSSEK, FRITZ; VON WIRTH, HERMANN-JOSEF
To: WIRTH MASCHINEN- UND BOHRGERATEFABRIK GMBH
Reel/Frame 010149/0736 →
Assignment of Assignor's Interest Dec 14, 1999
From: HDRK MINING RESEARCH LIMITED
To: WIRTH MASCHINEN-UND BOHRGERATE-FABRIK GMBH
Reel/Frame 010461/0994 →
Assignment of Assignor's Interest Oct 18, 2002
From: HEINRICHS, PETER; HEINRICHS, ALBRECHT
To: WIRTH MASCHINEN - UND BOHRGERATEFABRIK GMBH
Reel/Frame 013398/0342 →
Assignment of Assignor's Interest Aug 26, 2004
From: HEINRICHS, PETER; HEINRICHS, ALBRECHT
To: WIRTH MASCHINEN- UND BOHRGERATEFABRIK GMBH
Reel/Frame 016270/0395 →
Assignment of Assignor's Interest Oct 24, 2005
From: MOHRMANN, MICHAEL
To: WIRTH MASCHINEN-UND BOHRGERATE-FABRIK GMBH
Reel/Frame 017119/0563 →
Assignment of Assignor's Interest Jul 31, 2006
From: TIBUSSEK, FRITZ; HEINRICHS, PETER
To: WIRTH MASCHINEN- UND BOHRGERATE-FABRIK GMBH
Reel/Frame 018138/0163 →
Assignment of Assignor's Interest Dec 3, 2007
From: HEINRICHS, ALBRECHT
To: WIRTH MASCHINEN-UND BOHRGERATE-FABRIK GMBH
Reel/Frame 020214/0633 →
Change of Name Nov 11, 2014
From: AKER WIRTH GMBH
To: MHWIRTH GMBH
Reel/Frame 034197/0847 →