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
Methods and systems for creating a tail risk hedge index and trading derivative products based thereon
Water bottle warning triangle
Method and apparatus for increasing query traffic to a web site
Probe for ultrasound diagnostic apparatus
Use of natriuretic peptide for treating heart failure
Image forming apparatus having a primary transfer unit, a secondary transfer unit, and a direct transfer unit
Direct chemical vapor deposition of graphene on dielectric surfaces
  Randomly Featured Patents
High flow air muffler
Spheroidal graphite cast iron member having improved mechanical strength hand method of producing same
Recording sheet having improved cohesion and adhesion of microcapsules
Opposed view and dual head detector apparatus for diagnosis and biopsy with image processing methods
Current driver employing pulse-width modulation
Compensation for low gain bipolar transistors in voltage and current reference circuits
Vinyl chloride resin composition
Retractable batch reactor sampler
Optical methods to intraoperatively detect positive prostate and kidney cancer margins
Unified user identification with automatic mapping and database absence handling