Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6519901 | Apparatus for enhancing the survivability of exposed structures | Robert Sigurd Nelson | 2003-02-18 |
| 6345194 | Enhanced high resolution breast imaging device and method utilizing non-ionizing radiation of narrow spectral bandwidth | Robert Sigurd Nelson | 2002-02-05 |
| 6226933 | Apparatus and method for enhancing the survivability of exposed structures | Robert Sigurd Nelson | 2001-05-08 |
| 6216540 | High resolution device and method for imaging concealed objects within an obscuring medium | Robert Sigurd Nelson | 2001-04-17 |
| 5999836 | Enhanced high resolution breast imaging device and method utilizing non-ionizing radiation of narrow spectral bandwidth | Robert Sigurd Nelson | 1999-12-07 |
| 5805665 | Anthropomorphic mammography phantoms | Robert Sigurd Nelson | 1998-09-08 |
| 5719916 | Anthropomorphic mammography and lung phantoms | Robert Sigurd Nelson | 1998-02-17 |
| 4969175 | Apparatus for narrow bandwidth and multiple energy x-ray imaging | Robert Sigurd Nelson, Zoran L. Barbaric | 1990-11-06 |
| 4958363 | Apparatus for narrow bandwidth and multiple energy x-ray imaging | Robert Sigurd Nelson, Zoran L. Barbaric | 1990-09-18 |
| 4829184 | Reflective, transmissive high resolution imaging apparatus | Robert Sigurd Nelson | 1989-05-09 |
| 4767928 | High resolution breast imaging device utilizing non-ionizing radiation of narrow spectral bandwidth | Robert Sigurd Nelson | 1988-08-30 |
| 4649275 | High resolution breast imaging device utilizing non-ionizing radiation of narrow spectral bandwidth | Robert Sigurd Nelson | 1987-03-10 |