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9719225 | Portable water inflatable barrier with water inflatable base | Dec 19, 16 | Aug 01, 17 | Not available |
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8882397 | Methods for waterproofing depositing sites | Jun 20, 12 | Nov 11, 14 | Trevi S.p.A. |
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7114879 | Water control gate and actuator therefore | Jul 09, 02 | Oct 03, 06 | OBERMEYER, HENRY K., HENRY K. OBERMEYER, |
6991403 | System for anchoring fabric panels | Sep 14, 05 | Jan 31, 06 | Hendee Enterprises, Inc. |
5810510 | Underground drainage system | Jun 14, 96 | Sep 22, 98 | ASTRAL PROPERTY PTY LTD |
5735636 | Method for installing an expansion joint in a concrete dam | Jun 07, 95 | Apr 07, 98 | HYDRO-QUEBEC |
5709502 | Connection system for reinforced composite structures | Aug 23, 95 | Jan 20, 98 | POINTS WEST COMMUNITY BANK |
5553971 | Double-containment underground piping system | Dec 20, 88 | Sep 10, 96 | PISCES BY OPW, INC., OPW/BUFFALO ACQUISITION, INC. (MERGED INTO), PISCES BY OPW, INC. (CHANGED TO), |
5527131 | Liquid-blocking ring assembly for surface drains | Sep 01, 94 | Jun 18, 96 | The United States of America as represented by the Secretary of the Navy |