Resources Contact Us Home
Browse by Category: Main > Chemistry
Class Information
Number: 585/941
Name: Chemistry of hydrocarbon compounds > Special chemical considerations > Isotope exchange process
Description: Collection of documents (under unnumbered subclass SPECIAL CHEMICAL CONSIDERATIONS) which disclose the replacement of a carbon atom or a hydrogen atom of a hydrocarbon compound by a specified or unusual isotope of carbon or hydrogen, e.g., carbon-14, deuterium, etc.

Patents under this class:

Patent Number Title Of Patent Date Issued
7754930 Use of isotopic analysis for determination of aromatic hydrocarbons produced from methane Jul. 13, 2010
7126023 Method for deuteration of an inert methylene Oct. 24, 2006
4227028 Regioselective substitution at carbon atom vinical to doubly bonded tertiary carbon atom by sulfur dioxide catalysts Oct. 7, 1980
4190612 Regioselective isomerization at carbon atom vicinal to doubly bonded tertiary carbon atom by sulfur dioxide catalysis Feb. 26, 1980
3989705 Processes for the deuteration and/or tritiation of organic substrates by hydrogen substitution Nov. 2, 1976

  Recently Added Patents
Semiconductor apparatus
Pet fish burial pod
System and method for providing security in browser-based access to smart cards
Method and system for presenting live video from video capture devices on a computer monitor
Fluid-borne particle detector
Social network user data advertising
Method for improving the performance of browser-based, formula-driven parametric objects
  Randomly Featured Patents
System and method of changing a PWM power spectrum
Cell tagging method for buffered and fragmented frames
Sunshield attachment for an infant carrier
Piezoelectric surface pressure input panel
Headed fastener retainer clip
Non-condensible gas injection including alpha-olefin sulfonate surfactant additives
Tablet computer case with strap
Piezopolymer transducer with matching layer
Synchronous digital hierarchy digital cross-connection apparatus
Crenellated filament package