U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"

The Quarterly Review ; March edition, 1825

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 514/959 - BREATHING GASES


Subclass of Class 514 - Drug, bio-affecting and body treating compositions
Definition: Subject matter involving inhalation of a breathing gas such
No. of patents: 46
Last issue date: 06/24/2008


  2  
NumberTitleIssue Date
4206753Method and apparatus for mixing gases
Oxygen is mixed into hydrogen for use as breathing gas for divers, pressure chambers and the like in precise and regulated amounts. Provision is also made to prevent explosion of these mutually reactive gases during mixing....
06/10/1980
4197213Method and apparatus for the pyrotechnic generation of multi-component gases
A method and apparatus are disclosed for pyrotechnically generating a mixture of at least two gases, substantially in a predetermined ratio, for an extended period of time, with separate pyrotechnic charges generating each component of the resultant mixtu...
04/08/1980
4183962Process for oxygenating blood by the utilization of liquid membranes
The instant invention relates to an improved process for oxygenating blood comprising: contacting said blood with oxygen-containing bubbles, said bubbles being coated with a liquid membrane, said liquid membrane phase permitting the permeation of oxygen i...
01/15/1980
4183961Method of oxygenating blood
A method of oxygenating venous blood in a blood oxygenator wherein blood and oxygen are admixed by flowing blood, into which has been introduced bubbles of oxygen, through a three dimensional, open cellular mixing material having a substantial void volume...
01/15/1980
41675702-Methyl-6-alkyl-11-aminoalkyl-6,11-dihydro-5H-pyrido(2,3-B)(1,5)benzodia zepin-5-ones and salts thereof
Compounds of the formula ##STR1## wherein R1 --is hydrogen, alkyl of 1 to 6 carbon atoms or benzyl; R2 --is alkyl of 1 to 6 carbon atoms, cycloalkyl of 5 to 7 carbon atoms or, together with R1 and the adjacent nitrogen ato...
09/11/1979
3995062Halocyclopropyl halomethyl ethers
The following halocyclopropyl halomethyl ethers have been synthesized and found to possess utility as general inhalation anesthetics: 1-chloro-2-chlorofluoromethoxy-1,2,3,3-tetrafluorocyclopropane, 1-chloro-2-difluoromethoxy-1,2,3,3-tetrafluorocyclopropane, ...
11/30/1976
  2  
 
Sign InRegister
Username  
Password   
forgot password?