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Class Information
Number: 23/293R
Name: Chemistry: physical processes > Physical processes

Sub-classes under this class:

Class Number Class Name Patents
23/313R Agglomerating 275
23/306 Concentration of liquids in liquids 24
23/295R Crystallization 260
23/293A Flaking, spraying 43
23/308R Melting out 21
23/294R Sublimation 54
23/293S Sulfur 50

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8691178 Purification of carbon nanotubes using agarose column and density gradient ultracentrifugation Apr. 8, 2014
8551192 Miscibility of otherwise immiscible compounds Oct. 8, 2013
8382858 Nanoparticle-textured surfaces and related methods for selective adhesion, sensing and separation Feb. 26, 2013
7981168 Compact heat exchanger made of ceramics having corrosion resistance at high temperature Jul. 19, 2011
7959688 Method for removing ammonia nitrogen from solutions Jun. 14, 2011
7846216 Method for making colloidal nanocrystals Dec. 7, 2010
7815732 Continuous method for partially crystallising a solution and a device for carrying out said method Oct. 19, 2010
7494635 Boron nitride agglomerated powder Feb. 24, 2009
7357835 Production of crystalline materials by using high intensity ultrasound Apr. 15, 2008
7128840 Ultrasound enhanced process for extracting metal species in supercritical fluids Oct. 31, 2006
7097671 Method of cleaning industrial gases Aug. 29, 2006
6960256 Formation of small crystals Nov. 1, 2005
6821339 Process for the crystallization of non-sucrose substances Nov. 23, 2004
6818142 Potassium hydrogen peroxymonosulfate solutions Nov. 16, 2004
6652822 Spherical boron nitride particles and method for preparing them Nov. 25, 2003
6610267 Method for manufacturing a calcium nitrate melt and product thereof Aug. 26, 2003
6541426 Method to produce pesticide suspension concentrates Apr. 1, 2003
6364920 CMP formulations Apr. 2, 2002
6333019 Method for operating a chemical and/or physical process by means of a hierarchical fluid injection system Dec. 25, 2001
6217622 Method and apparatus for precipitating and classifying solids in high concentrations Apr. 17, 2001
6162263 Method for producing and shipping metal cyanide salts Dec. 19, 2000
6159252 Process and device for producing granulates by fluidized bed spray granulation Dec. 12, 2000
6110438 Method of making black phosphorus from red phosphorus Aug. 29, 2000
6056791 Process for the production of particles or powders May. 2, 2000
5969044 Method of packaging air- and/or moisture-sensitive materials and for introducing the packaged materials into a reactor Oct. 19, 1999
5935275 Process for producing weakly agglomerated nanoscalar particles Aug. 10, 1999
5837211 Compositions and method for foam control in Bayer process Nov. 17, 1998
5807410 Process for removing elemental sulfur from a gas stream Sep. 15, 1998
5660599 Process for the recycling of spent indium oxide-tin oxide sputtering targets Aug. 26, 1997
5578285 Process for reducing the average particle size of ammonium paratungstate powders Nov. 26, 1996
5433932 Process to recover azide values from azide-based gas generating materials Jul. 18, 1995
5395806 Dense, granular alkaline earth metal carbonate and alkali metal salt composition for use in glass manufacture Mar. 7, 1995
5383940 Process of producing solid sodium cyanide Jan. 24, 1995
5374766 Ester and method for production thereof as well as hydrolysis process and determination of optical purity using this ester Dec. 20, 1994
5366513 Preparation of granulated alkaline earth metal carbonate Nov. 22, 1994
5346511 Antifoam/defoamer compositions for Bayer process Sep. 13, 1994
5336271 Method for increasing the proportion of a crystalline organic compound which remains uncrystallized in a composite particulate product and suppressing recrystallization Aug. 9, 1994
5286470 Silicate products Feb. 15, 1994
5281242 Method for recovering magnesium sulfate products from mixtures of epsomite and halite Jan. 25, 1994
5275793 Direct coupled degasser and liquefier Jan. 4, 1994
5269817 Process and apparatus for the crystallization of a melt Dec. 14, 1993
5201923 Stoichiometric B1-type tantalum nitride and a sintered body thereof and method of synthesizing the B1-type tantalum nitride Apr. 13, 1993
5194067 Recovery of hydrogen peroxide Mar. 16, 1993
5169406 Method and a device for preparing brine Dec. 8, 1992
5164263 Aluminum nitride flakes and spheres Nov. 17, 1992
5160470 Method for compacting silica fume Nov. 3, 1992
5147412 Production of dispersions of spherical particles by crystallization of emulsions Sep. 15, 1992
5087335 Process for cooling of gaseous chlorine Feb. 11, 1992
5066441 Process for compacting a calcium phosphate composition Nov. 19, 1991
5011819 Process using supercritical conditions for producing highly accurate and homogeneous powder mixture useful in fabrication of high quality ceramic superconductors Apr. 30, 1991

1 2 3

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