Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 181/140
Name: Acoustics > With vessel
Description: Subject matter for producing or receiving sonic compressional waves and a marine device.

Patents under this class:

Patent Number Title Of Patent Date Issued
6349791 Submarine bow dome acoustic sensor assembly Feb. 26, 2002
6341661 Bow dome sonar Jan. 29, 2002
5532980 Vibrational anti-fouling system Jul. 2, 1996
5507178 Liquid presence and identification sensor Apr. 16, 1996
5426619 Matched array plate Jun. 20, 1995
5353263 Soft sonar suspension system Oct. 4, 1994
5130948 Method and apparatus for reducing acoustic emission from submerged submarines Jul. 14, 1992
4934478 Contact sensing apparatus and method Jun. 19, 1990
4912464 Anchor alarm for boats and the like Mar. 27, 1990
4831599 Float for use in seismic surveys of the sea bed May. 16, 1989
4737940 Trolling motor with sonar transducer Apr. 12, 1988
4716553 Float for use in seismic surveys of the sea bed Dec. 29, 1987
4400805 Acoustically filtered transducer Aug. 23, 1983
4152392 Chemical canister May. 1, 1979
4039767 Acoustic emission transducer calibration Aug. 2, 1977
3951231 Seismic exploration Apr. 20, 1976

  Recently Added Patents
System for presenting media services
Controller for machine tool and five-axis simultaneous control machine tool controlled thereby
Managing device functionality during predetermined conditions
DC/DC converter, power supply circuit, and semiconductor device
Position-measuring device
Vehicle speed verification system and method
Automated tuning in a virtual machine computing environment
  Randomly Featured Patents
Speed control device for DC motor
Image receiving sheet for thermal transfer recording
Expandable wiring trough for telecommunications equipment
Recovering heat energy
Forming high voltage complementary semiconductor device (HV-CMOS) with gradient doping electrodes
Combined electrical connector and adapter plug therefor
Channel control system for exiting from an interactive program guide
Pyrrolopyrazine derivatives
Cassette for a printing ribbon for typewriters
Cache memory usable as scratch pad storage