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

Patenting In Technology Classes,
Breakout By Organization

Count of 2004 - 2008 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 2004 2005 2006 2007 2008 Total
~INDIVIDUALLY OWNED PATENT 207 204 185 183 168 947
MILLIPORE CORPORATION 8 6 10 7 7 38
PALL CORPORATION 8 9 5 6 10 38
BAXTER INTERNATIONAL INC. 5 6 7 5 4 27
U.S. FILTER CORPORATION 7 3 14 1 0 25
ZENON ENVIRONMENTAL INC. 7 9 8 0 0 24
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 2 2 5 6 4 19
FLEETGUARD, INC. 2 4 2 5 5 18
3M INNOVATIVE PROPERTIES COMPANY 1 0 12 2 2 17
OTV SOCIETE ANONYME 1 2 3 4 7 17
SANYO ELECTRIC CO., LTD. 3 3 5 3 3 17
GE HEALTHCARE BIO-SCIENCES AB 0 0 6 3 7 16
ENTEGRIS, INC. 0 0 5 4 6 15
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY 4 4 3 2 2 15
GENERAL ELECTRIC COMPANY 3 3 1 4 4 15
PARKER-HANNIFIN CORPORATION 3 3 4 3 2 15
UNITED STATES OF AMERICA, NAVY 3 1 8 2 1 15
ACCESS BUSINESS GROUP INTERNATIONAL LLC 7 1 1 4 1 14
BALDWIN FILTERS, INC. 1 2 3 5 3 14
EASTMAN KODAK COMPANY 4 0 0 3 7 14
EBARA CORPORATION 4 1 1 3 5 14
HONEYWELL INTERNATIONAL INC. 2 2 2 4 4 14
MANN & HUMMEL GMBH 0 2 3 3 6 14
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 3 6 1 3 1 14
CH2M HILL, INC. 3 3 4 2 1 13
CUNO INC. 5 7 1 0 0 13
HYDAC FILTERTECHNIK GMBH 3 1 1 3 5 13
KING TECHNOLOGY, INC 1 0 5 3 4 13
NALCO COMPANY 4 4 1 2 2 13
SANDIA CORPORATION 6 0 2 5 0 13
SIEMENS WATER TECHNOLOGIES CORP. 0 0 0 6 7 13
WATERS INVESTMENTS LIMITED 5 0 1 3 4 13
WIX FILTRATION CORP. 0 5 1 3 4 13
AGILENT TECHNOLOGIES, INC. 3 1 4 1 3 12
ARVIN TECHNOLOGIES, INC. 6 5 1 0 0 12
FILTERWERK MANN + HUMMEL GMBH 4 5 2 1 0 12
KURITA WATER INDUSTRIES LTD. 1 2 2 3 4 12
NGK INSULATORS LTD. 2 1 1 6 2 12
PROCTER + GAMBLE COMPANY 1 2 0 7 2 12
SIEMENS WATER TECHNOLOGIES HOLDING CORP. 0 0 0 5 7 12
ZENON TECHNOLOGY PARTNERSHIP 0 0 1 9 2 12
BASF AKTIENGESELLSCHAFT 4 1 1 1 4 11
DAICEL CHEMICAL INDUSTRIES LTD. 1 1 2 4 3 11
GAMBRO LUNDIA AB 1 0 2 4 4 11
HYDROTREAT, INC. 6 3 0 2 0 11
MEDTRONIC INC. 5 3 1 2 0 11
SPX CORPORATION 2 2 3 2 2 11
U.S. FILTER WASTEWATER GROUP, INC. 2 6 1 2 0 11
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH 2 3 1 3 1 10
DIONEX CORPORATION 1 1 1 3 4 10
HALLIBURTON ENERGY SERVICES, INC. 2 3 0 2 3 10
M-I L.L.C 2 3 0 2 3 10
MARINE DESALINATION SYSTEMS, L.L.C. 4 2 3 1 0 10
NITTO DENKO CORPORATION 4 3 1 2 0 10
PHASE, INC. 3 2 0 2 3 10
SHELL OIL COMPANY 5 2 1 1 1 10
THERMACO, INC. 1 2 2 2 3 10
UOP 1 2 2 1 4 10
AKZO NOBEL NV 3 3 1 1 1 9
AMERSHAM BIOSCIENCES AB 4 3 2 0 0 9
AQUA-AEROBIC SYSTEMS INC. 2 3 2 1 1 9
COMMISSARIAT A L'ENERGIE ATOMIQUE 1 2 1 3 2 9
DHARMA LIVING SYSTEMS, INC. 2 3 3 1 0 9
INSTITUT FRANCAIS DU PETROLE 3 0 0 4 2 9
MAHLE FILTERSYSTEME GMBH 4 4 0 1 0 9
NANOSTREAM, INC. 3 2 2 2 0 9
OUTOKUMPU OYJ 4 5 0 0 0 9
RG DELAWARE, INC. 1 1 4 3 0 9
SHIMADZU CORPORATION 1 2 1 4 1 9
TETRA HOLDING (US), INC. 2 2 1 2 2 9
ZODIAC POOL CARE, INC. 1 1 2 3 2 9
BASIN WATER, INC. 0 2 1 2 3 8
BOC GROUP, INC. 1 2 4 1 0 8
CONOCOPHILLIPS COMPANY 1 4 0 0 3 8
DANA CORPORATION 6 2 0 0 0 8
DELPHI TECHNOLOGIES, INC. 5 1 2 0 0 8
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH 5 2 0 1 0 8
HITACHI, LTD 1 2 2 2 1 8
LIPID SCIENCES, INC. 0 0 2 4 2 8
MYKROLIS CORPORATION 2 3 3 0 0 8
NEPHROS, INC. 3 1 3 1 0 8
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 3 2 0 1 2 8
TORAY INDUSTRIES INC. 1 1 1 3 2 8
ARCHIMEDES TECHNOLOGY GROUP, INC. 7 0 0 0 0 7
ASAHI KASEI MEDICAL CO., LTD. 0 0 2 2 3 7
ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC 0 0 1 5 1 7
BATTELLE MEMORIAL INSTITUTE 3 0 3 0 1 7
E. I. DU PONT DE NEMOURS AND COMPANY 4 1 1 0 1 7
FENWAL, INC. 0 0 0 4 3 7
GAMBRO, INC. 1 0 4 2 0 7
ORGANO CORPORATION 0 2 2 1 2 7
PTI TECHNOLOGIES, INC. 2 5 0 0 0 7
SARTORIUS AG 0 5 1 1 0 7
STANADYNE CORPORATION 2 4 0 0 1 7
VARIAN, INC. 0 1 1 1 4 7
ADVION BIOSCIENCES, INC. 5 1 0 0 0 6
ANDRITZ AG 2 1 2 1 0 6
AQUAFIBER TECHNOLOGIES CORPORATION 2 1 2 1 0 6
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS 1 1 1 0 3 6
CLEMSON UNIVERSITY 0 1 1 2 2 6
DEGREMONT S.A. 1 0 1 3 1 6
DONALDSON COMPANY, INC. 2 0 1 2 1 6
ELM TECHNOLOGIES, L.L.C. 0 1 0 4 1 6
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. 3 1 1 0 1 6
GL&V MANAGEMENT HUNGARY KFT 2 1 1 1 1 6
GLOBAL BIOSCIENCES, INC. 1 2 0 2 1 6
HITACHI HIGH-TECHNOLOGIES CORPORATION 0 2 3 1 0 6
INTRINSIC BIOPROBES, INC. 0 0 5 1 0 6
KINETICO, INC. 1 1 1 2 1 6
KOSLOW TECHNOLOGIES CORPORATION 3 2 1 0 0 6
MEURER RESEARCH, INC. 0 1 2 2 1 6
NUTECH 03 0 1 0 1 4 6
PARKER INTANGIBLES LLC 0 0 2 2 2 6
SASOL TECHNOLOGY (PROPRIETARY) LIMITED 0 0 4 2 0 6
SCHROEDER INDUSTRIES L.L.C. 0 2 1 2 1 6
UNITED STATES OF AMERICA, ENVIRONMENTAL PROTECTION AGENCY 1 0 0 3 2 6
WATERVISIONS INTERNATIONAL, INC. 1 3 0 2 0 6
WEATHERFORD/LAMB, INC. 4 1 0 0 1 6
ALLTECH ASSOCIATES, INC. 2 1 2 0 0 5
BIOPROCESS TECHNOLOGIES, LTD. 0 5 0 0 0 5
CATERPILLAR INC. 1 1 0 2 1 5
CHISSO CORPORATION 2 0 3 0 0 5
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED 2 1 1 1 0 5
DANISCO SWEETENERS OY 0 2 1 1 1 5
DENSO CORPORATION 0 3 1 1 0 5
EASTMAN CHEMICAL COMPANY 0 1 0 3 1 5
FINNFEEDS FINLAND OY 0 0 3 1 1 5
GE OSMONICS, INC. 0 1 3 1 0 5
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 1 1 1 1 1 5
I. KRUGER, INC. 0 1 2 0 2 5
JAPAN SCIENCE AND TECHNOLOGY CORPORATION 3 2 0 0 0 5
JERRY L. MCKINNEY 2002 TRUST 0 0 0 4 1 5
JMS CO., LTD. 1 0 0 2 2 5
KOCH MEMBRANE SYSTEMS, INC. 0 1 1 1 2 5
LANCER PARTNERSHIP LTD. 4 0 1 0 0 5
LANXESS DEUTSCHLAND GMBH 0 0 0 1 4 5
MIOX CORPORATION 1 0 1 3 0 5
MITSUBISHI DENKI KABUSHIKI KAISHA 0 2 1 1 1 5
NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO 3 0 1 0 1 5
PENTAIR PUMP GROUP, INC. 0 1 2 1 1 5
TELEDYNE ISCO, INC. 0 1 1 0 3 5
THE CLOROX COMPANY 0 0 1 3 1 5
TOSHIBA CORPORATION 0 1 2 1 1 5
TOSOH CORPORATION 2 1 0 1 1 5
TROJAN TECHNOLOGIES INC. 1 0 2 0 2 5
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED 2 0 2 1 0 5
WATER STANDARD COMPANY, LLC 0 0 2 1 2 5
WRT INTERNATIONAL LLC 0 0 2 0 3 5


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Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

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fax: (571) 273-0110
email: oeip@uspto.gov

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