LOCKWOOD; WILLIAM D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for LOCKWOOD; WILLIAM D..The latest application filed is for "precast concrete post tensioned segmented wind turbine tower".
- LOCKWOOD; WILLIAM D. - DAYTON OH
| Patent | Date |
|---|---|
| Precast Concrete Post Tensioned Segmented Wind Turbine Tower App 20190106856 - LOCKWOOD; JAMES D. ; et al. | 2019-04-11 |
| Precast Concrete Post Tensioned Segmented Wind Turbine Tower App 20160017868 - Lockwood; James D. ; et al. | 2016-01-21 |
| Precast concrete post tensioned segmented wind turbine tower Grant 9,175,670 - Lockwood , et al. November 3, 2 | 2015-11-03 |
| Precast Concrete Post Tensioned Segmented Wind Turbine Tower App 20140033628 - Lockwood; James D. ; et al. | 2014-02-06 |
| Composite plastics bridge unit Grant D579,575 - Lockwood October 28, 2 | 2008-10-28 |
| Precast concrete support for a bridge Grant D573,722 - Lockwood July 22, 2 | 2008-07-22 |
| Open bottom fiber reinforced precast concrete arch unit App 20070261341 - Lockwood; William D. ; et al. | 2007-11-15 |
| Open bottom fiber reinforced precast concrete arch unit App 20060201091 - Lockwood; William D. ; et al. | 2006-09-14 |
| Precast concrete retaining wall Grant 7,001,110 - Lockwood February 21, 2 | 2006-02-21 |
| Precast concrete retaining wall App 20050191130 - Lockwood, William D. | 2005-09-01 |
| Precast concrete culvert system Grant 6,854,928 - Lockwood February 15, 2 | 2005-02-15 |
| Concrete tunnel for a rapid transit train Grant D490,533 - Lockwood May 25, 2 | 2004-05-25 |
| Concrete tunnel for a rapid transit train Grant D484,610 - Lockwood December 30, 2 | 2003-12-30 |
| Precast concrete culvert system App 20030143029 - Lockwood, William D. | 2003-07-31 |
| Box shaped structural member with pultruded flanges and connecting webs Grant 6,094,881 - Lockwood August 1, 2 | 2000-08-01 |
| Composite bridge deck pultrusion Grant D426,321 - Lockwood June 6, 2 | 2000-06-06 |
| Method of strengthening an existing reinforced concrete member Grant 5,894,003 - Lockwood April 13, 1 | 1999-04-13 |
| Concrete bridge section Grant D406,902 - Lockwood March 16, 1 | 1999-03-16 |
| Precast concrete culvert system Grant 4,993,872 - Lockwood * February 19, 1 | 1991-02-19 |
| Precast concrete culvert system Grant 4,854,775 - Lockwood * August 8, 1 | 1989-08-08 |
| Precast concrete culvert system Grant 4,797,030 - Lockwood * January 10, 1 | 1989-01-10 |
| Precast concrete culvert section Grant 4,687,371 - Lockwood * August 18, 1 | 1987-08-18 |
| Precast concrete culvert section Grant 4,595,314 - Lockwood June 17, 1 | 1986-06-17 |
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