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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 2003 - 2007 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 055, Gas 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	2003	2004	2005	2006	2007	Total
~INDIVIDUALLY OWNED PATENT	30	29	16	21	18	114
DONALDSON COMPANY, INC.	9	6	6	10	13	44
SAMSUNG KWANG-JU ELECTRONICS CO., LTD.	13	4	4	10	10	41
NGK INSULATORS LTD.	0	2	3	7	6	18
FLEETGUARD, INC.	3	4	4	2	3	16
3M INNOVATIVE PROPERTIES COMPANY	1	4	3	2	4	14
FILTERWERK MANN + HUMMEL GMBH	8	3	2	0	0	13
CORNING INCORPORATED	1	2	2	1	5	11
MANN & HUMMEL GMBH	0	0	2	4	5	11
LG ELECTRONICS INC.	3	2	1	1	3	10
ANDREAS STIHL AG & CO.	2	1	1	1	3	8
DYSON LIMITED	1	2	1	4	0	8
CARRIER CORPORATION	4	1	1	0	1	7
DENSO CORPORATION	0	5	2	0	0	7
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.)	1	3	1	2	0	7
HONEYWELL INTERNATIONAL INC.	1	1	1	3	1	7
ROBERT BOSCH GMBH	2	2	2	1	0	7
BHA GROUP HOLDINGS, INC.	0	3	1	1	1	6
EBARA CORPORATION	2	3	0	0	1	6
ALFA LAVAL CORPORATE AB	0	0	0	5	0	5
BABCOCK & WILCOX COMPANY	0	0	3	0	2	5
G.B.D. CORP.	3	1	1	0	0	5
PALL CORPORATION	3	1	1	0	0	5
THE HOOVER COMPANY	1	0	0	0	4	5
TOYOTA JIDOSHA K.K.	0	1	1	3	0	5

PTMT Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450
tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov
address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMT reports and materials from : ftp.uspto.gov/pub/taf/

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