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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes,
Breakout By Organization

Count of 2000 - 2004 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 095, Gas Separation: Processes

( 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 2000 2001 2002 2003 2004 Total
~Individually Owned Patent 14 28 27 22 17 108
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 11 22 14 8 5 60
AIR PRODUCTS AND CHEMICALS, INC. 8 6 9 17 6 46
PRAXAIR TECHNOLOGY, INC. 9 8 11 10 7 45
BOC GROUP, INC. 7 7 13 5 0 32
DONALDSON COMPANY, INC. 6 2 8 5 7 28
ADVANCED TECHNOLOGY MATERIALS, INC. 4 1 4 6 4 19
UOP 6 5 2 2 1 16
MEMBRANE TECHNOLOGY & RESEARCH, INC. 2 0 3 9 0 14
3M INNOVATIVE PROPERTIES COMPANY 1 4 4 1 2 12
ENGELHARD CORPORATION 2 2 4 4 0 12
BATTELLE MEMORIAL INSTITUTE 1 1 0 7 2 11
INSTITUT FRANCAIS DU PETROLE 2 4 0 3 2 11
AMERICAN AIR LIQUIDE, INC. 1 2 3 0 2 8
ELECTRIC POWER RESEARCH INSTITUTE, INC. 1 1 1 2 3 8
BENDIX COMMERCIAL VEHICLE SYSTEMS LLC. 0 0 1 1 5 7
NIPPON SANSO K.K. 0 1 1 2 3 7
SHELL OIL COMPANY 2 2 0 2 1 7
E. I. DU PONT DE NEMOURS AND COMPANY 3 1 0 1 1 6
MATHESON TRI-GAS, INC. 1 0 2 0 3 6
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 1 1 2 1 1 6
G.B.D. CORP. 0 3 2 0 0 5
LITTON SYSTEMS INC. 0 0 2 1 2 5
MITSUBISHI HEAVY INDUSTRIES, LTD. 1 1 0 1 2 5
SAMSUNG ELECTRONICS CO., LTD. 2 0 0 1 2 5
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD. 1 2 0 1 1 5
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 0 1 0 3 1 5


PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMD pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMD reports and materials from : ftp.uspto.gov/pub/taf/


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