Lutenegger; Alan J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lutenegger; Alan J..The latest application filed is for "helical screw pile".
- Lutenegger; Alan J. - Sunderland MA US
- Lutenegger; Alan J. - Potsdam NY
- Lutenegger; Alan J. - Ames IA
| Patent | Date |
|---|---|
| Helical screw pile Grant 8,506,207 - Lutenegger , et al. August 13, 2 | 2013-08-13 |
| Helical Screw Pile App 20130101360 - LUTENEGGER; Alan J. ; et al. | 2013-04-25 |
| Tapered blade in situ soil testing device Grant 4,543,820 - Handy , et al. October 1, 1 | 1985-10-01 |
| Borehole plate test Grant 4,458,525 - Lutenegger , et al. July 10, 1 | 1984-07-10 |
| Portable variable expansion testing device for measuring lateral pressure induced on a material by a vertical applied pressure Grant 4,122,704 - Lutenegger , et al. October 31, 1 | 1978-10-31 |
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