KERR-MCGEE CHEMICAL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A61N ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY 1106

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5415655 Medical device including light energy emitting contact tip with means for raising temperature of the tipApr 26, 94May 16, 95[A61N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6004519 Aluminum promoted hydrogenation of alkylation sludge for aluminum chloride recoveryExpiredJan 02, 97Dec 21, 99[C01F]
5641468 Lithium manganese oxide compound and method of preparationExpiredSep 07, 95Jun 24, 97[C01G]
5510561 Homogenous catalyst and processes for fluid phase alkylationExpiredMar 06, 95Apr 23, 96[C07C]
5312457 Use of hydroquinone to precondition manganese dioxide for use in rechargeable electrochemical cellsExpiredJul 01, 92May 17, 94[H01M, C01G]
5300273 Process for producing a vapor mixture of titanium tetrachloride and aluminum trichlorideExpiredDec 03, 92Apr 05, 94[C01G, C01F]
5278208 Particulate opacifying extender for polymer coatingsExpiredNov 18, 92Jan 11, 94[C08K]
5264031 Particulate opacifying extender for polymer coatingsExpiredFeb 23, 93Nov 23, 93[C01B, C09G]
5169618 Process for producing hydrogen peroxideExpiredJan 13, 92Dec 08, 92[C01B]
5108726 Compacts of spray dried water soluble compoundsExpiredAug 19, 88Apr 28, 92[C01B, C01D]
5028481 Electrically conductive pigmentary compositesExpiredOct 16, 89Jul 02, 91[B32B]
4989463 Sample collection shieldExpiredMar 02, 90Feb 05, 91[G01N]
4923518 Chemically inert pigmentary zinc oxidesExpiredDec 15, 88May 08, 90[C08H]
4921545 Harvester for removing a substance from a plateExpiredJan 25, 89May 01, 90[B08B]
4874434 Method of treating a titanium structureExpiredMay 16, 88Oct 17, 89[B08B, C23G]
4812302 Process for preparing high purity Mn.sub.3 O.sub.4ExpiredJun 15, 87Mar 14, 89[C01G]
4719110 Boron-containing wood preservativesExpiredAug 26, 85Jan 12, 88[A01N]
4670992 Process for treating wood productsExpiredMar 31, 86Jun 09, 87[F26B]
4668539 Process for the preservation of wood productsExpiredDec 30, 85May 26, 87[B05D, B27K]
4605421 Process for the preparation of a carbonaceous-derived solid fuel productExpiredSep 10, 84Aug 12, 86[C10L]
4578086 Method for controlling boric acid particle size distributionExpiredSep 02, 83Mar 25, 86[B01D]

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