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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Branch (PTMB)

Patenting In Technology Classes,
Breakout By Organization

Count of 2001 - 2005 Utility Patent Grants,
By Calendar Year of Grant
With Patent Counts Based on Primary Patent Classification

- Explanation of Data -

Rank Ordered Listing of Organizations Receiving 5 or More Utility Patents During the Period
Having Primary Classification In

Class 210, Liquid Purification or Separation

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent ownership is determined by the first-named assignee listed on a patent )

The following table displays first-named assignees and counts of their associated patents, as distributed by the year of patent grant
First-Named Assignee 2001 2002 2003 2004 2005 Total
~Individually Owned Patent 310 245 206 208 204 1173
BAXTER INTERNATIONAL INC. 13 10 7 5 6 41
PALL CORPORATION 9 9 2 8 9 37
ZENON ENVIRONMENTAL INC. 8 6 7 7 9 37
U.S. FILTER CORPORATION 6 13 5 7 3 34
FILTERWERK MANN + HUMMEL GMBH 3 3 11 4 5 26
DANA CORPORATION 8 5 3 6 2 24
FLEETGUARD, INC. 5 2 11 2 4 24
CUNO INC. 4 3 2 5 7 21
TRANSGENOMIC INCORPORATED 4 11 6 0 0 21
INSTITUT FRANCAIS DU PETROLE 7 6 3 3 0 19
MILLIPORE CORPORATION 3 2 0 8 6 19
SARTORIUS AG 6 4 4 0 5 19
ARCHIMEDES TECHNOLOGY GROUP, INC. 8 0 3 7 0 18
NITTO DENKO CORPORATION 3 5 3 4 3 18
PARKER-HANNIFIN CORPORATION 7 2 3 3 3 18
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 5 5 3 3 2 18
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 0 6 3 3 6 18
NALCO CHEMICAL COMPANY 13 4 0 0 0 17
GENERAL ELECTRIC COMPANY 4 4 2 3 3 16
WATERS INVESTMENTS LIMITED 3 4 4 5 0 16
MYKROLIS CORPORATION 1 3 6 2 3 15
OUTOKUMPU OYJ 2 1 3 4 5 15
TORAY INDUSTRIES INC. 4 5 4 1 1 15
ARVIN TECHNOLOGIES, INC. 0 1 2 6 5 14
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH 2 3 2 5 2 14
SYMYX TECHNOLOGIES, INC. 1 8 0 3 2 14
ACCESS BUSINESS GROUP INTERNATIONAL LLC 0 1 4 7 1 13
DAICEL CHEMICAL INDUSTRIES LTD. 4 3 4 1 1 13
ORGANO CORPORATION 4 6 1 0 2 13
AMERSHAM BIOSCIENCES AB 0 0 5 4 3 12
EASTMAN KODAK COMPANY 3 2 3 4 0 12
HYDROTREAT, INC. 1 0 2 6 3 12
KURITA WATER INDUSTRIES LTD. 2 4 3 1 2 12
SHELL OIL COMPANY 1 2 2 5 2 12
STANADYNE CORPORATION 0 5 1 2 4 12
UOP 3 5 1 1 2 12
DELPHI TECHNOLOGIES, INC. 0 3 2 5 1 11
MAHLE FILTERSYSTEME GMBH 0 1 2 4 4 11
SANYO ELECTRIC CO., LTD. 0 4 1 3 3 11
AGILENT TECHNOLOGIES, INC. 3 2 1 3 1 10
AKZO NOBEL NV 2 1 1 3 3 10
BAKER HUGHES INCORPORATED 5 0 3 2 0 10
BALDWIN FILTERS, INC. 2 2 3 1 2 10
BASF AKTIENGESELLSCHAFT 4 0 1 4 1 10
DEGREMONT S.A. 6 2 1 1 0 10
E. I. DU PONT DE NEMOURS AND COMPANY 4 1 0 4 1 10
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY 0 0 2 4 4 10
FANTOM TECHNOLOGIES INC. 6 3 1 0 0 10
HONEYWELL INTERNATIONAL INC. 0 3 3 2 2 10
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 7 1 2 0 0 10
MEDTRONIC INC. 0 0 2 5 3 10
ONDEO NALCO COMPANY 0 2 4 4 0 10
U.S. FILTER WASTEWATER GROUP, INC. 0 0 2 2 6 10
BAYER AKTIENGESELLSCHAFT 1 6 0 1 1 9
COMMISSARIAT A L'ENERGIE ATOMIQUE 2 2 2 1 2 9
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH 0 0 4 2 3 9
EBARA CORPORATION 0 2 2 4 1 9
FUJI PHOTO FILM CO., LTD 4 3 2 0 0 9
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 3 2 0 2 2 9
KIMBERLY-CLARK WORLDWIDE, INC. 3 3 2 1 0 9
MITSUBISHI RAYON CO., LTD. 5 2 2 0 0 9
NELSON INDUSTRIES, INC. 2 3 3 1 0 9
NEPHROS, INC. 2 2 1 3 1 9
PROCTER + GAMBLE COMPANY 0 2 4 1 2 9
PTI TECHNOLOGIES, INC. 1 1 0 2 5 9
UNITED STATES OF AMERICA, NAVY 4 0 1 3 1 9
AMERSHAM PHARMACIA BIOTECH AB 4 3 1 0 0 8
BERGER INSTRUMENTS, INC. 0 2 5 1 0 8
DIALYSIS SYSTEMS, INC. 5 0 3 0 0 8
DONALDSON COMPANY, INC. 5 1 0 2 0 8
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. 0 1 3 3 1 8
HITACHI, LTD 3 1 1 1 2 8
KOSLOW TECHNOLOGIES CORPORATION 0 0 3 3 2 8
NALCO COMPANY 0 0 0 4 4 8
PARKER HANNIFIN OY 3 1 3 1 0 8
SANDIA CORPORATION 0 2 0 6 0 8
SHIMADZU CORPORATION 2 1 2 1 2 8
ADVION BIOSCIENCES, INC. 0 0 1 5 1 7
ALLTECH ASSOCIATES, INC. 2 0 2 2 1 7
AQUA-AEROBIC SYSTEMS INC. 1 0 1 2 3 7
ASAHI KASEI KOGYO KABUSHIKI KAISHA 3 3 1 0 0 7
ASAHI MEDICAL CO., LTD. 1 3 1 1 1 7
BATTELLE MEMORIAL INSTITUTE 1 2 1 3 0 7
CH2M HILL, INC. 0 0 1 3 3 7
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED 1 2 1 2 1 7
COCA-COLA COMPANY 2 3 1 1 0 7
CORNING INCORPORATED 4 2 0 0 1 7
DEGUSSA AKTIENGESELLSCHAFT 1 1 2 2 1 7
HYDAC FILTERTECHNIK GMBH 0 1 2 3 1 7
IONICS, INC. 1 0 4 2 0 7
ISCO, INC. 5 0 1 1 0 7
KIONIX, INC. 1 4 0 2 0 7
LANCER PARTNERSHIP LTD. 0 1 2 4 0 7
MARINE DESALINATION SYSTEMS, L.L.C. 0 0 1 4 2 7
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG 1 2 2 1 1 7
NIPRO CORPORATION 2 0 4 1 0 7
SUEZ-LYONNAISE DES EAUX 3 1 3 0 0 7
UNITED STATES OF AMERICA, DEPARTMENT OF THE INTERIOR 1 3 0 1 2 7
AGRIMOND, L.L.C. 1 2 3 0 0 6
ALLIED-SIGNAL INC. 3 2 1 0 0 6
AMCOL INTERNATIONAL CORPORATION 1 4 0 1 0 6
ASHBROOK CORPORATION 2 1 2 1 0 6
ASHLAND INC. 0 0 4 2 0 6
BIOPROCESS TECHNOLOGIES, LTD. 1 0 0 0 5 6
DEXTER MAGNETIC TECHNOLOGIES, INC. 0 2 4 0 0 6
DOW CHEMICAL COMPANY 3 3 0 0 0 6
GLOBAL BIOSCIENCES, INC. 1 1 1 1 2 6
HALLIBURTON ENERGY SERVICES, INC. 0 0 1 2 3 6
INNOVA/PURE WATER INC. 3 0 3 0 0 6
JAPAN SCIENCE AND TECHNOLOGY CORPORATION 1 0 0 3 2 6
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY 2 2 1 1 0 6
KVAERNER PULPING AKTIEBOLAG 2 1 1 1 1 6
M-I L.L.C 0 0 1 2 3 6
MICROBAN PRODUCTS COMPANY 3 0 2 0 1 6
NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO 0 2 1 3 0 6
ONTOGEN CORPORATION 1 4 1 0 0 6
PHASE, INC. 1 0 0 3 2 6
SIEMENS AKTIENGESELLSCHAFT 0 1 2 0 3 6
SPX CORPORATION 0 0 2 2 2 6
THERMACO, INC. 0 2 1 1 2 6
USF FILTRATION AND SEPARATIONS GROUP INC. 5 0 1 0 0 6
WATERVISIONS INTERNATIONAL, INC. 2 0 0 1 3 6
WEATHERFORD/LAMB, INC. 0 0 1 4 1 6
AIR PRODUCTS AND CHEMICALS, INC. 1 2 0 1 1 5
BASF CORP. 0 2 1 2 0 5
BECHTEL BWXT IDAHO, LLC 1 1 2 1 0 5
BIOTAGE, INC. 0 1 2 2 0 5
BUCHER-GUYER AG MASCHINENFABRIK 2 2 0 0 1 5
CLEARLINE SYSTEMS, INC. 3 1 1 0 0 5
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION 0 2 1 0 2 5
CONOCOPHILLIPS COMPANY 0 0 0 1 4 5
CREAVIS GESELLSCHAFT FUR TECHNOLOGIE UND INNOVATION MBH 2 1 1 0 1 5
DENSO CORPORATION 1 1 0 0 3 5
DHARMA LIVING SYSTEMS, INC. 0 0 0 2 3 5
DIONEX CORPORATION 1 0 2 1 1 5
DOW GLOBAL TECHNOLOGIES INC. 0 0 3 1 1 5
DYAX CORP. 3 2 0 0 0 5
G.B.D. CORP. 5 0 0 0 0 5
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 0 0 3 1 1 5
HOSPAL INDUSTRIES (S.A.) 3 1 0 1 0 5
IBC ADVANCED TECHNOLOGIES, INC. 0 1 3 1 0 5
KINETICO, INC. 1 2 0 1 1 5
KRUGER AS 5 0 0 0 0 5
KUSS CORPORATION 1 2 1 1 0 5
NANOSTREAM, INC. 0 0 0 3 2 5
NATE INTERNATIONAL 1 0 3 0 1 5
NOVASEP S.A. 0 2 1 0 2 5
OTV SOCIETE ANONYME 0 0 2 1 2 5
OXYGEN8, INC. 4 0 1 0 0 5
PARKSON CORPORATION 1 1 1 2 0 5
POLARIS POOL SYSTEMS, INC. 2 1 0 2 0 5
QIAGEN GMBH 1 1 2 0 1 5
RF DELAWARE, INC. 1 0 2 1 1 5
SEH AMERICA, INC. 1 3 1 0 0 5
SUMITOMO HEAVY INDUSTRIES, LTD. 1 3 0 1 0 5
UNIVERSAL SEPARATORS, INC. 2 0 1 2 0 5
VARCO I/P, INC. 0 2 2 1 0 5
VORTEX INTERNATIONAL, LLC 0 2 2 1 0 5
WATER RESEARCH COMMISSION 4 0 1 0 0 5
WIX FILTRATION CORP. 0 0 0 0 5 5
ZODIAC POOL CARE, INC. 3 0 0 1 1 5


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