LandOfFree - US Patents - Listing for Communications, electrical: acoustic wave systems and devices,Echo systems,Distance or direction finding

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for determining the length of tubular membe

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for eliminating substantially false...

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for fixed target echo suppression in distan

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for improved active sonar using...

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for locating underwater objects

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for measurement of length and height of obj

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for measuring a distance using ultrasonic e

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for measuring distance

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for measuring the depth of an underwater ta

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for monitoring bridge structures for scouri

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for surveying positions of mooring lines

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and apparatus for ultrasonic sensing

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and device for detecting objects dispersed in an area of

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and device for detecting objects, especially used as...

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and device for detecting objects, especially used as...

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and device for determining target speed and distance with

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and device for determining variations in the position of

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and device for distance measurement

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Method and device for helicopter-borne mine countermeasures