Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 454/291
Name: Ventilation > Having inlet airway > Including specific air distributor (e.g., register, etc.) > Floor type > With means for liquid contact
Description: Subject matter comprising means for directly exposing the air to water or another liquid.

Patents under this class:

Patent Number Title Of Patent Date Issued
6878057 System for filtering and scenting of the air of individual rooms of a building Apr. 12, 2005
6814660 HVAC localized air filter assembly system Nov. 9, 2004
6749499 Cover for register and register opening Jun. 15, 2004
6234893 Vent device for use with medium for altering a condition of air entering an environment May. 22, 2001
5599485 Portable humidifier assembly Feb. 4, 1997
5403233 Humidifier Apr. 4, 1995
4706552 Furnace register humidifier Nov. 17, 1987
4338859 Humidifying aid Jul. 13, 1982
4327630 Humidifier May. 4, 1982
4240991 Humidifier Dec. 23, 1980
D255927 Room humidifier Jul. 15, 1980
4056049 Space humidifier Nov. 1, 1977
4006674 Humidifiers for forced air systems Feb. 8, 1977

  Recently Added Patents
Identification of electrical grid phase information for end-points in a grid network
Frame timing synchronization in a geostationary satellite system
Remote management of networked systems using secure modular platform
Blocky hydroxyethylcellulose, derivatives thereof, process of making and uses thereof
Sensing during magnetic resonance imaging
Optical interconnect in high-speed memory systems
Image sensing apparatus and method of controlling the image sensing apparatus
  Randomly Featured Patents
Cell selection and reselection in a multiple modulation cellular radio system
Method and apparatus for joining metal-air cells
Memory device and method of making same
Golf tool
Method and apparatus for congestion-aware routing in a computer interconnection network
Zipper hole punch treatment
Apparatus for on-loading and/or off-loading a vehicle on a vehicle carrier and releaseably latching the vehicle thereto
System and methods for biological selenium removal from water
Transparent, oxygen-scavenging compositions and articles prepared therefrom
Watch strap