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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 720, Dynamic Optical Information Storage or Retrieval
( 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
SONY CORPORATION
16
34
26
27
18
121
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
6
15
16
15
18
70
SAMSUNG ELECTRONICS CO., LTD.
8
5
15
6
9
43
LG ELECTRONICS INC.
2
4
11
5
6
28
TEAC CORPORATION
6
7
3
6
6
28
FUJITSU LIMITED
4
2
6
9
6
27
HITACHI, LTD
4
6
7
7
2
26
~Individually Owned Patent
5
2
6
6
7
26
PIONEER CORPORATION
0
1
9
10
5
25
MITSUBISHI DENKI KABUSHIKI KAISHA
2
1
8
7
6
24
ALPS ELECTRIC CO., LTD.
3
6
6
4
1
20
PIONEER ELECTRONIC CORPORATION
1
10
2
1
2
16
TANASHIN DENKI CO., LTD.
2
4
0
4
6
16
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN
2
4
3
2
4
15
ALPINE ELECTRONICS INC.
1
4
2
1
6
14
LITE-ON IT CORPORATION
0
0
1
3
10
14
MITSUMI ELECTRIC CO., LTD.
2
6
2
0
4
14
SANYO ELECTRIC CO., LTD.
0
2
1
2
9
14
HEWLETT-PACKARD COMPANY
1
6
5
0
0
12
FUNAI ELECTRIC CO., LTD.
0
0
2
4
5
11
KONINKLIJKE PHILIPS ELECTRONICS N.V.
0
0
2
5
4
11
NEC CORPORATION
2
5
0
3
1
11
CLARION CO., LTD.
0
0
4
3
3
10
TDK CORPORATION
1
4
3
1
1
10
KABUSHIKI KAISHA KENWOOD
0
0
3
5
1
9
TOSHIBA CORPORATION
2
3
4
0
0
9
BEHAVIOR TECH COMPUTER CORP.
1
3
0
2
1
7
NAKAMICHI CORPORATION
4
0
0
2
1
7
SONY COMPUTER ENTERTAINMENT INC.
0
0
2
3
2
7
FUJI PHOTO FILM CO., LTD
0
0
0
0
6
6
SHARP KABUSHIKI KAISHA (SHARP CORPORATION)
0
1
0
0
5
6
IMATION CORP.
0
1
1
1
2
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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