Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9519816 | Method and apparatus for optimizing optical code scanning | — | 2016-12-13 |
| 9471822 | Demarcating a redaction area within a field of view of a video stream | — | 2016-10-18 |
| 9471823 | Multiple barcode processing apparatus, systems, and methods | — | 2016-10-18 |
| 9250116 | Apparatus, method and system for generating an optical code with authenticatable information | — | 2016-02-02 |
| 8950672 | Methods and apparatus for control of an imaging scanner | Donald A. Collins, Jr. | 2015-02-10 |
| 8622299 | Apparatus, method and system for determining the source of an optical code presentated to an optical code scanner | Timothy Mason, Michael Andrew Kleppinger | 2014-01-07 |
| 8199004 | RFID tag reader | — | 2012-06-12 |
| 7673796 | System and method for providing remote site intervention support for self-checkout stations | Erick Kobres, David Taylor Baker | 2010-03-09 |
| 7672900 | Write input transaction apparatus and method | David M. J. Allgeier, Floyd Jones, Robert L. Protheroe | 2010-03-02 |
| 7617979 | Method of determining failure of an RFID label reader | — | 2009-11-17 |
| 7417545 | Method of determining failure of a communication base station | — | 2008-08-26 |
| 6781580 | Methods and apparatus for replacing an electronic shelf label battery | — | 2004-08-24 |
| 6539363 | Write input credit transaction apparatus and method with paperless merchant credit card processing | David M. J. Allgeier, Floyd Jones, Robert L. Protheroe | 2003-03-25 |
| 5587560 | Portable handwritten data capture device and method of using | Robert L. Protheroe | 1996-12-24 |
| 5563381 | Handwriting capture system with segmented digitizer | Robert L. Protheroe | 1996-10-08 |
| 5414441 | Temperature compensation apparatus for liquid crystal display | Kazem Memarzadeh, Robert L. Protheroe | 1995-05-09 |
| 5412161 | Handwriting capture system with segmented digitizer | Robert L. Protheroe | 1995-05-02 |
| 5401916 | Method and apparatus for capturing handwritten information and providing visual feedback | — | 1995-03-28 |
| 5387765 | Data secure digitizer control circuit and method | — | 1995-02-07 |
| 5373117 | Method for reducing errors in a digitizer | — | 1994-12-13 |
| 5335230 | Apparatus and method for automatic digitizer fault detection | Robert L. Protheroe | 1994-08-02 |
| 5285506 | Method of recording a handwritten message | Robert L. Protheroe | 1994-02-08 |
| 5191175 | Self-tuning digitizer control circuit and method | Robert L. Protheroe, Kazem Memarzadeh | 1993-03-02 |
| 5140107 | Digitizer screen and method of making | Kazem Memarzadeh, Robert L. Protheroe | 1992-08-18 |
| 5115107 | Method of correcting skew between a digitizer and a digital display | Robert L. Protheroe | 1992-05-19 |