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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 1998 - 2002 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 378, X-Ray or Gamma Ray Systems or Devices

( 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 1998 1999 2000 2001 2002 Total
GENERAL ELECTRIC COMPANY 26 23 37 85 45 216
SIEMENS AKTIENGESELLSCHAFT 33 31 31 38 45 178
~Individually Owned Patent 36 18 32 28 26 140
U.S. PHILIPS CORPORATION 14 12 23 46 14 109
GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC 0 0 0 10 86 96
TOSHIBA CORPORATION 13 7 10 17 24 71
CANON KABUSHIKI KAISHA 8 11 16 15 13 63
ANALOGIC CORPORATION 13 16 12 14 7 62
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 0 0 0 43 43
SIEMENS CORPORATE RESEARCH, INC. 4 13 9 8 5 39
PICKER INTERNATIONAL, INC. 3 7 20 7 0 37
SHIMADZU CORPORATION 5 2 4 9 10 30
HITACHI MEDICAL CORPORATION 3 8 5 3 10 29
VARIAN MEDICAL SYSTEMS, INC. 0 3 8 4 13 28
SIEMENS MEDICAL SYSTEMS, INC. 4 1 11 8 1 25
AMERICAN SCIENCE AND ENGINEERING, INC. 1 4 3 7 8 23
GE MEDICAL SYSTEMS S.A. 0 0 2 9 5 16
HOLOGIC, INC. 7 2 2 3 2 16
LUNAR CORPORATION 4 1 4 4 2 15
CARDIAC MARINERS, INCORPORATED 3 1 3 7 0 14
FUJI PHOTO FILM CO., LTD 2 1 2 5 4 14
EASTMAN KODAK COMPANY 2 2 0 2 7 13
INTERNATIONAL BUSINESS MACHINES CORPORATION 3 4 5 1 0 13
PHOTOELECTRON CORPORATION 0 0 1 7 5 13
GE YOKOGAWA MEDICAL SYSTEMS, LIMITED 2 1 2 2 5 12
HITACHI, LTD 3 4 1 2 2 12
NIKON CORPORATION 0 1 2 5 4 12
SEIKO INSTRUMENTS INC. 0 1 3 3 5 12
SIEMENS MEDICAL SOLUTIONS USA, INC. 0 0 0 2 10 12
RIGAKU CORPORATION 0 0 1 6 4 11
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 1 2 4 2 2 11
ADVANCED MICRO DEVICES, INC. 3 2 0 2 3 10
SIRONA DENTAL SYSTEMS GMBH & CO. KG 2 3 2 1 1 9
COMMISSARIAT A L'ENERGIE ATOMIQUE 1 1 1 5 0 8
CONTINENTAL X-RAY CORP. 3 4 1 0 0 8
HAMAMATSU PHOTONICS KABUSHIKI KAISHA 1 1 2 0 4 8
HEIMANN SYSTEMS GMBH & CO. KG 1 0 1 3 3 8
J. MORITA MANUFACTURING CORP. 2 0 4 2 0 8
RIGAKU DENKI COMPANY LIMITED 1 0 1 2 4 8
OSMIC, INC. 1 0 3 1 2 7
UNITED STATES OF AMERICA, NAVY 0 1 2 4 0 7
ARCH DEVELOPMENT CORP. 1 1 2 2 0 6
JORDAN VALLEY APPLIED RADIATION LTD. 0 0 2 0 4 6
MITSUBISHI DENKI KABUSHIKI KAISHA 0 0 0 5 1 6
SCHICK TECHNOLOGIES, INC. 1 3 2 0 0 6
VARIAN ASSOCIATES, INC. 5 1 0 0 0 6
AGFA-GEVAERT N.V. 1 0 1 1 2 5
AGILENT TECHNOLOGIES, INC. 0 0 0 2 3 5
BRUKER AXS ANALYTICAL X-RAY SYSTEMS GMBH 0 0 1 3 1 5
DIRECT RADIOGRAPHY CORP. 0 0 1 2 2 5
EUV LLC 0 0 0 3 2 5
HOYA CORPORATION 1 1 1 1 1 5
KONICA CORPORATION 0 0 0 2 3 5
MARCONI MEDICAL SYSTEMS ISRAEL LTD. 0 0 1 4 0 5
MEDTRONIC AVE, INC. 0 0 1 1 3 5
PHILIPS ELECTRONICS NORTH AMERICA CORP. 1 2 0 1 1 5
SAMSUNG ELECTRONICS CO., LTD. 0 0 0 1 4 5
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION 1 1 0 2 1 5
SIEMENS ELEMA AB 0 0 1 2 2 5
STANFORD UNIVERSITY, LELAND JUNIOR, THE BOARD OF TRUSTEES OF 1 1 2 1 0 5
TREX MEDICAL CORPORATION 1 2 1 0 1 5
UNIVERSITY OF ROCHESTER 0 1 1 1 2 5
X-RAY TECHNOLOGIES PTY LTD 0 0 2 1 2 5


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