IP Library › Assignment 010547/0449
Patent Assignment
Reel/Frame 010547/0449

Security Interest

Recorded: 2000-02-25 Pages: 12
Assignor
GTCO CORPORATION
Executed: 2000-02-25
Assignee
FIRST UNION NATIONAL BANK
1970 CHAIN BRIDGE ROAD, MCCLEAN, VIRGINIA, 22102
Covered Properties (65)
Calculator Interface
Patent: 4,151,596 →
Application: 05/836,366 →
Low Noise System and Method for Sequentially Sensing Induced Signals in Digitizer Grid Conductors
Patent: 4,185,165 →
Application: 05/921,514 →
Method and Apparatus for Digitizing the Location of an Instrument Relative to a Grid
Patent: 4,210,775 →
Application: 05/921,572 →
Graphic Digitizer
Patent: 4,206,314 →
Application: 05/933,569 →
Up/Down Scanning Digitizing Apparatus and Method
Patent: 4,260,852 →
Application: 06/042,093 →
Distance Ranging Apparatus and Method
Patent: 4,357,672 →
Application: 06/173,723 →
Apparatus and Method for Determining the Position of a Driven Coil Within a Grid of Spaced Conductors
Patent: 4,423,286 →
Application: 06/400,511 →
Hand-Holdable Digitizer Cursor
Patent: 288,816 →
Application: 06/619,243 →
X-Y Position Sensor
Patent: 4,659,874 →
Application: 06/779,350 →
Noise-Canceling System for a Digitizing Tablet
Patent: 4,736,073 →
Application: 06/828,060 →
Digitizer System with Loopback Conductor Grid
Patent: 4,734,546 →
Application: 07/026,217 →
Measuring Table for Co-Ordinate Measuring System
Patent: 4,855,538 →
Application: 07/104,579 →
Digitizer Cursor Coil for Reducing Edge Effect
Patent: 4,827,086 →
Application: 07/116,034 →
Method of Making a Cursor for an Inductive Sensor
Patent: 4,833,774 →
Application: 07/131,286 →
Low-Cost, High-Accuracy Digitizer Signal Acquisition Aparatus and Method
Patent: 4,820,886 →
Application: 07/140,648 →
Frequency Shifting Digitizer for Reducing Ac Fields Interference
Patent: 4,794,208 →
Application: 07/152,993 →
Shifting Wire Sequence Digitizer System
Patent: 4,835,347 →
Application: 07/155,267 →
3-Dimensional Digitizer Pen
Patent: 4,806,707 →
Application: 07/155,500 →
Digitizer System with Intertwined Loopback Conductor Grid
Patent: 4,831,216 →
Application: 07/156,358 →
Cursor
Patent: 4,933,671 →
Application: 07/179,945 →
Shielding Technique for Digitizers
Patent: 4,853,497 →
Application: 07/208,467 →
Ground Switching Technique for Silkscreened Digitizer Grids
Patent: 4,853,499 →
Application: 07/283,509 →
Apparatus for Digitizing Positions on a Transparency
Patent: 4,973,800 →
Application: 07/284,544 →
Ink-On-Glass Digitizer Tablet and Method of Construction
Patent: 4,873,399 →
Application: 07/286,700 →
Sparking Stylus for Acoustic Digitizer
Patent: 4,891,474 →
Application: 07/314,562 →
Cursor for an Inductive Sensor for Use with a Digitizer Board
Patent: 4,947,460 →
Application: 07/321,434 →
Co-Ordinate Measuring System
Patent: 4,918,263 →
Application: 07/383,254 →
Position Determination Apparatus
Patent: 4,956,824 →
Application: 07/405,944 →
Digitizer Pen Tilt Correction Employing Wires Near the Data Point
Patent: 4,939,318 →
Application: 07/431,886 →
Position Determining Apparatus
Patent: 5,050,134 →
Application: 07/467,632 →
Apparatus and Method for Distance Determination
Patent: 5,043,950 →
Application: 07/467,662 →
Method and Apparatus for Position Determination
Patent: 5,009,277 →
Application: 07/495,330 →
Scr Control for High Current Discharge Circuit
Patent: 5,105,393 →
Application: 07/495,337 →
Apparatus and Method for Determining Travel Time of Acoustic Energy
Patent: 5,054,005 →
Application: 07/495,361 →
Digitizer System with Passive Pointer
Patent: 5,045,645 →
Application: 07/527,027 →
Digitizer with Capacitive and Inductive Coupling
Patent: 5,124,509 →
Application: 07/643,576 →
Position Digitizer Circuit for a Moveable Instrument
Patent: 5,107,079 →
Application: 07/670,998 →
Digitizer Employing Loopback Conductor Pattern Using Rotation Sequencing
Patent: 5,134,253 →
Application: 07/714,675 →
Automatic Tracking and Scanning Cursor for Digitizers
Patent: 5,287,105 →
Application: 07/743,801 →
Phase Reference System for Cordless Looping Digitizer
Patent: 5,235,142 →
Application: 07/760,563 →
Cordless Digitizer Local Conductor Phase Reference System
Patent: 5,160,813 →
Application: 07/767,112 →
Single Coil Digitizer-Coupled Image Scanner
Patent: 5,227,909 →
Application: 07/767,462 →
Roll-Up Digitizer
Patent: 347,832 →
Application: 07/781,612 →
See-Through Digitizer with Clear Conductive Grid
Patent: 5,381,160 →
Application: 07/784,929 →
Cordless Digitizer Stylus Status Encoding and Transmission Scheme
Patent: 5,247,138 →
Application: 07/789,665 →
Method for Use in a Digitizer for Determining Pen Tilt
Patent: 5,198,623 →
Application: 07/799,570 →
Printed Conductive Ink Electrostatic Shield for Electromagnetic Digitizers
Patent: 5,274,198 →
Application: 07/816,308 →
Digitizer Cursor/Mouse with Unitary Switch Actuators
Patent: 5,270,692 →
Application: 07/869,839 →
Cordless Digitizer Using Electromagnetic Locating Signals
Patent: 5,345,044 →
Application: 07/875,841 →
Digitizer Tablet Having High Permeability Grid Shield
Patent: 5,357,061 →
Application: 07/877,831 →
Dynamically-Adjustable Scanning Rate in Digitizers
Patent: 5,326,940 →
Application: 07/903,605 →
Digitizer Cursor Velocity Offset Error Correction System
Patent: 5,821,916 →
Application: 07/929,971 →
Position Determining Apparatus
Patent: 5,379,269 →
Application: 08/003,786 →
Pressure Sensing Apparatus for Digitizer Pen Tip
Patent: 5,357,062 →
Application: 08/010,536 →
Three-Dimensional Circuits for Digitizer and Pen-Based Computer System Pen Cursors
Patent: 5,384,688 →
Application: 08/027,642 →
Cordless Transducer Phase Reference and Data Communication Apparatus and Method for Digitizers
Patent: 5,408,055 →
Application: 08/140,841 →
Half Normal Frequency Regime Phase Encoding in Cordless Digitizers
Patent: 5,373,118 →
Application: 08/140,855 →
Voltage Controlled Oscillator Circuit Employing Integrated Circuit Component Ratios
Patent: 5,384,554 →
Application: 08/163,964 →
Phase Lock Loop Circuit for Signals Periodically Inverting in Phase
Patent: 5,436,598 →
Application: 08/184,687 →
Cordless Digitizer Transducer/Cursor Status Transmission Apparatus and Method
Patent: 5,525,981 →
Application: 08/282,822 →
Dynamic Pressure Adjustment of a Pressure-Sensitive Pointing Device for a Digitizer
Patent: 5,635,683 →
Application: 08/368,778 →
Illumination Apparatus for a Digitizer Tablet with Improved Light Panel
Patent: 5,736,686 →
Application: 08/396,617 →
High Efficiency Passive Pointer Digitizer System
Patent: 5,714,720 →
Application: 08/503,409 →
High Accuracy Digitizer System
Patent: 5,854,449 →
Application: 08/526,185 →
Digitizer Tablet System with Dual-Mode Cursor/Mouse
Patent: 5,701,141 →
Application: 08/708,905 →
Related Assignments (25)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest. Jul 21, 1982
From: BERGERON, GARY A.
To: TALOS SYSTEMS, INC.
Reel/Frame 004029/0004 →
Merger Delaware, Effective Dec. 23, 1983 Jan 26, 1984
From: TALOS SYSTEMS IN
To: SANDERS ASSOCIATES INC
Reel/Frame 004213/0871 →
Merger Effective Dec. 30, 1983 Jan 27, 1984
From: TALOS SYSTEMS, INC.
To: SANDERS ASSOCIATES, INC.
Reel/Frame 004215/0389 →
Assignment of Assignors Interest. Jun 11, 1984
From: ROCKWELL, LYNN H.
To: SANDERS ASSOCIATES, INC., DANIEL WEBSTER HIGHWAY SOUTH, NASHUA, NEW HAMPSHIRE, A DE CORP.
Reel/Frame 004272/0390 →
Assignment of Assignors Interest. Sep 23, 1985
From: LANDMEIER, WALDO L.
To: SANDERS ASSOCIATES, INC. DANIEL WEBSTER HIGHWAY SOUTH, NASHUA, NH A CORP OF DE
Reel/Frame 004465/0800 →
Assignment of Assignors Interest. Apr 16, 1986
From: ABERNETHY, BRIAN L.
To: SANDERS ASSOCIATES, INC.
Reel/Frame 004558/0522 →
Assignment of Assignors Interest. Apr 11, 1987
From: MC COURT, DAVID J.
To: GTCO CORPORATION, A CORP. OF MD
Reel/Frame 004860/0433 →
Assignment of Assignors Interest. Dec 7, 1987
From: LANDMEIER, WALDO L.
To: CALCOMP, INC., 2411 WEST LA PALMA AVENUE, P.O. BOX 3250, ANAHEIM, CA 92803, A CORP. OF CA
Reel/Frame 004799/0283 →
Assignment of Assignors Interest. Jan 4, 1988
From: WATSON, JAMES S.
To: SANDERS ASSOCIATES, INC., DANIEL WEBSTER HIGHWAY SOUTH , NASHUA, NEW HAMPSHIRE, A DE. CORP.
Reel/Frame 004826/0858 →
Assignment of Assignors Interest. Feb 8, 1988
From: WATSON, JAMES S.
To: CALCOMP, INC., A CA CORP.
Reel/Frame 004861/0326 →
Assignment of Assignors Interest. Feb 12, 1988
From: WATSON, JAMES S.
To: CALCOMP, INC., A CORP. OF CA.
Reel/Frame 004875/0295 →
Assignment of Assignors Interest. Feb 12, 1988
From: LANDMEIER, WALDO L
To: CALCOMP, INC., A CORP. OF CA
Reel/Frame 004853/0086 →
Assignment of Assignors Interest. Feb 12, 1988
From: LANDMEIER, WALDO L.
To: CALCOMP, INC.
Reel/Frame 004868/0593 →
Assignment of Assignors Interest. May 16, 1988
From: SANDERS ASSOCIATES, INC.,
To: CALCOMP INC.
Reel/Frame 004891/0680 →
Assignment of Assignors Interest. May 16, 1988
From: SANDERS ASSOCIATES, INC.,
To: CALCOMP INC.
Reel/Frame 004888/0679 →
Assignment of Assignors Interest. Jun 20, 1988
From: LANDMEIER, WALDO L.
To: CALCOMP INC., A CORP. OF CA
Reel/Frame 004904/0899 →
Assignment of Assignors Interest. Jul 11, 1988
From: SANDERS ASSOCIATES, INC.
To: CALCOMP INC., 2411 WEST LA PALMA AVENUE, ANAHEIM, CALIFORNIA 92803-3250, A CA CORP.
Reel/Frame 004914/0463 →
Assignment of Assignors Interest. Dec 12, 1988
From: WATSON, JAMES S.
To: CALCOMP INC., A CORP. OF CA
Reel/Frame 004980/0565 →
Assignment of Assignors Interest. Dec 15, 1988
From: SINDEBAND, SEYMOUR J.; TERK, HAROLD
To: SCIENCE ACCESSORIES CORP., 970 KINGS HIGHWAY WEST, SOUTHPORT, CT. A CORP.
Reel/Frame 004986/0680 →
Assignment of Assignors Interest. Dec 20, 1988
From: LANDMEIER, WALDO L.
To: CALCOMP INC., A CORP. OF CA
Reel/Frame 005005/0944 →
Assignment of Assignors Interest. Jan 23, 1989
From: SANDERS ASSOCIATES, INC.,
To: CALCOMP INC., A CA. CORP.
Reel/Frame 005010/0091 →
Re-Record of an Instrument Recorded July 11, 1988, at Reel 4914, Frame 463-465 to Correct Serial Number 919,951 and 091,148, Erroneously Stated (See Record for Details) Jan 23, 1989
From: SANDERS ASSOCIATES, INC.
To: CALCOMP INC., A CA CORP.
Reel/Frame 005020/0311 →
Assignment of Assignors Interest. Feb 23, 1989
From: KELLY, WILLIAM
To: SCIENCE ACCESSORIES CORP.
Reel/Frame 005022/0834 →
Assignment of Assignors Interest. Mar 27, 1989
From: SANDER ASSOCIATES, INC.
To: CALCOMP INC., A CORP. OF CA
Reel/Frame 005033/0155 →
Assignment of Assignors Interest. Sep 18, 1989
From: SANDERS ASSOCIATES INC.
To: CALCOMP INC.
Reel/Frame 005148/0772 →