Engdahl; Lawrence W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Engdahl; Lawrence W..The latest application filed is for "foldable front-entry walker having resistance to backward motion".
- Engdahl; Lawrence W. - Guilford CT
- Engdahl; Lawrence W. - Foxboro MA
| Patent | Date |
|---|---|
| Foldable front-entry walker having resistance to backward motion Grant 5,499,856 - Sorrell , et al. March 19, 1 | 1996-03-19 |
| Annular cylindrical multihole collimator for a radioisotope camera and method of making same Grant 5,270,549 - Engdahl December 14, 1 | 1993-12-14 |
| Applanation tonometer using light reflection to determine applanation area size Grant 5,070,875 - Falck , et al. December 10, 1 | 1991-12-10 |
| Variable sunshield Grant 4,962,780 - Engdahl , et al. October 16, 1 | 1990-10-16 |
| Hinged plastic duct for conduit Grant 4,942,271 - Corsi , et al. July 17, 1 | 1990-07-17 |
| Scanning gamma camera Grant 4,012,636 - Engdahl , et al. March 15, 1 | 1977-03-15 |
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