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Class Information
Number: 405/84
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Navigable canal
Description: Method or apparatus relating to navigable waterways or miscellaneous appliances not otherwise classifiable for use therein.

Sub-classes under this class:

Class Number Class Name Patents
405/85 Having lock 12

Patents under this class:

Patent Number Title Of Patent Date Issued
6837655 Submersible canal bypass Jan. 4, 2005
6811354 Saltwater intrusion prevention system Nov. 2, 2004
6692191 Fender system Feb. 17, 2004
6652189 Method for a migratory fish bypass channel with natural features Nov. 25, 2003
6543968 Submersible canal bypass Apr. 8, 2003
6309140 Fender system Oct. 30, 2001
5934027 Earthquake resistant building structure employing sandbags Aug. 10, 1999
5678956 Navigational bypass, gate and pump device for use in water Oct. 21, 1997
5642963 Spillway gate system Jul. 1, 1997
5013184 Lock using air chambers May. 7, 1991
4162864 System for and method of moving sea water by utilizing tidal flow and ebb Jul. 31, 1979
3930450 Boat ride for amusement park Jan. 6, 1976

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