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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
Issue Dt:
09/09/2003
Application #:
09751478
Filing Dt:
12/28/2000
Publication #:
Pub Dt:
08/30/2001
Inventors:
John E. Mercer, Albert W. Chau
Title:
TRACKING THE POSITIONAL RELATIONSHIP BETWEEN A BORING TOOL AND ONE OR MORE BURIED LINES USING A COMPOSITE MAGNETIC SIGNAL
Assignment: 1
Reel/Frame:
011429/0363Recorded: 12/28/2000Pages: 3
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
Exec Dt:
05/26/1999
Exec Dt:
05/26/1999
Assignee:
425 S.W. 41ST STREET
RENTON, WISCONSIN 98005
Correspondent:
BOULDER PATENT SERVICES, INC.
JAY R. BEYER
1021 GAPTER ROAD
BOULDER, CO 80303
Assignment: 2
Reel/Frame:
014345/0838Recorded: 08/04/2003Pages: 2
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor:
Exec Dt:
05/01/2003
Assignee:
425 S W 41ST STREET
RENTON, WASHINGTON 98055
Correspondent:
BOULDER PATENTS SERVICES, INC.
JAY R. BEYER
1021 GAPTER ROAD
BOULDER, CO 80303

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