Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12397576 | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products | Joel Mikael Petersen, John Michael Tamkin, Roger W. Phillips, Phillip Christopher Harvey | 2025-08-26 |
| 12360391 | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products | Roger W. Phillips, Joel Mikael Petersen | 2025-07-15 |
| 12269288 | Optical switch devices | Joel Mikael Petersen, Roger W. Phillips, John Michael Tamkin | 2025-04-08 |
| 12253691 | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products | Roger W. Phillips, Joel Mikael Petersen, John Michael Tamkin | 2025-03-18 |
| 12223794 | Optical switch devices | Joel Mikael Petersen, Roger W. Phillips, John Michael Tamkin | 2025-02-11 |
| 12078821 | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products | Phillip Christopher Harvey, Joel Mikael Petersen | 2024-09-03 |
| 11861966 | Optical switch devices | Joel Mikael Petersen, Roger W. Phillips, John Michael Tamkin | 2024-01-02 |
| 11840112 | Optical structures providing dichroic effects | Roger W. Phillips, Joel Mikael Petersen | 2023-12-12 |
| 11675203 | Optical structures providing dichroic effects | Roger W. Phillips, Joel Mikael Petersen | 2023-06-13 |
| 11618275 | Optical switch devices | Joel Mikael Petersen, Roger W. Phillips, John Michael Tamkin | 2023-04-04 |
| 11590790 | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products | Joel Mikael Petersen, John Michael Tamkin, Roger W. Phillips, Phillip Christopher Harvey | 2023-02-28 |
| 11221448 | Animated optical security feature | Joel Mikael Petersen, Roger W. Phillips, John Michael Tamkin | 2022-01-11 |
| 11198316 | Optical structures providing dichroic effects | Roger W. Phillips, Joel Mikael Petersen | 2021-12-14 |
| 11162652 | Linear light emitting diode luminaires | John N. Magno, Eric W. Teather | 2021-11-02 |
| 11113919 | Optical switch devices | Joel Mikael Petersen, Roger W. Phillips, John Michael Tamkin | 2021-09-07 |
| 10883678 | Linear light emitting diode luminaires | John N. Magno, Eric W. Teather | 2021-01-05 |
| 10859851 | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products | Phillip Christopher Harvey, Joel Mikael Petersen | 2020-12-08 |
| 10850550 | Optical switch devices | Joel Mikael Petersen, Roger W. Phillips, John Michael Tamkin | 2020-12-01 |
| 10838218 | Optical structures providing dichroic effects | Roger W. Phillips, Joel Mikael Petersen | 2020-11-17 |
| 10795059 | Ultra thin Fresnel lenses and other optical elements | Joel Mikael Petersen | 2020-10-06 |
| 10655803 | Linear light emitting diode luminaires | John N. Magno, Eric W. Teather | 2020-05-19 |
| 10252563 | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products | Joel Mikael Petersen, John Michael Tamkin, Roger W. Phillips, Phillip Christopher Harvey | 2019-04-09 |
| 9851070 | Systems and methods to impart visual quality to illumination systems | Phillip Christopher Harvey, Eric W. Teather, Joel Mikael Petersen | 2017-12-26 |
| 9110363 | Polarization preserving projection screen with engineered pigment and method for making same | Joel Mikael Petersen, Raymond Jacob Lewandowski, Gary D. Sharp, David A. Coleman | 2015-08-18 |
| 8488240 | Polarization preserving projection screen with engineered pigment and method for making same | Joel Mikael Petersen, Raymond Jacob Lewandowski, Gary D. Sharp, David A. Coleman | 2013-07-16 |