Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11105964 | Cube corner sheeting having optically variable marking | Kathryn M. Spurgeon, Olester Benson, Jr., Joseph V. Crimando | 2021-08-31 |
| 10627552 | Retroreflective articles including a security mark | Suman K. Patel, Mikhail L. Pekurovsky | 2020-04-21 |
| 10564331 | Cube corner sheeting having optically variable marking | Kathryn M. Spurgeon, Olester Benson, Jr., Joseph V. Crimando | 2020-02-18 |
| 10509148 | Irradiation marking of retroreflective sheeting | Robert Leland Wee Smithson | 2019-12-17 |
| 10082609 | Irradiation marking of retroreflective sheeting | Robert Leland Wee Smithson | 2018-09-25 |
| 9964674 | Retroreflective articles including a security mark | Suman K. Patel, Mikhail L. Pekurovsky | 2018-05-08 |
| 9823394 | Retroreflective articles including a security mark | Suman K. Patel, Mikhail L. Pekurovsky | 2017-11-21 |
| 9463601 | Cube corner sheeting having optically variable marking | Kathryn M. Spurgeon, Olester Benson, Jr., Joseph V. Crimando | 2016-10-11 |
| 9110235 | Retroreflective sheeting and license plate with reduced retroreflectivity at high entrance angles | Toshitaka Nakajima, Masami Yokoyama, Akira Muramoto | 2015-08-18 |
| 8950877 | Security markings in retroreflective sheeting | Paul J. Northey | 2015-02-10 |
| 5940212 | Cube corner article with altered inactive areas and method of making same | Norbert L. Johnson, Theodore J. Szczech | 1999-08-17 |
| 5706133 | Retroreflective signage articles, kits for producing same, and methods of making signage articles | Lisa Flatt Nelson, Thomas F. Look, Joseph R. Zwack | 1998-01-06 |
| 5700077 | Line light source including fluorescent colorant | John F. Dreyer, Jr., Thomas I. Bradshaw, David M. Burns, Lee A. Pavelka | 1997-12-23 |
| 5670005 | Method for manufacturing improved data display retroreflective sheeting | Thomas F. Look, Robert V. O'Keefe, Craig A. Schmidt, Joseph M. McGrath, Steven E. Poss +2 more | 1997-09-23 |
| 5634670 | Validation sticker mounting system and components for use therein | Joseph R. Zwack, David L. Meyer | 1997-06-03 |
| 5508105 | Thermal print receptive and frangible retrorefelective polymeric sheetings | Thomas F. Look, Robert F. Watkins, Joseph M. McGrath, Robert V. O'Keefe, Joseph R. Zwack | 1996-04-16 |
| 4714656 | Sheet containing contour-dependent directional image and method for forming the same | Thomas I. Bradshaw, Jack E. Cook | 1987-12-22 |
| 4708920 | Microlens sheet containing directional half-tone images and method for making the same | Thomas I. Bradshaw | 1987-11-24 |
| 4650283 | Directionally imaged retroreflective sheeting | Thomas I. Bradshaw | 1987-03-17 |
| 4645301 | Transparent sheet containing authenticating image and method of making same | Thomas I. Bradshaw | 1987-02-24 |
| 4634220 | Directionally imaged sheeting | Eric N. Hockert, Thomas I. Bradshaw, Frank A. Borgeson | 1987-01-06 |