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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 351, Optics: Eye Examining, Vision Testing and Correcting
( 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
~Individually Owned Patent |
83 |
114 |
103 |
87 |
85 |
472 |
NIDEK CO., LTD. |
12 |
17 |
15 |
11 |
8 |
63 |
KABUSHIKI KAISHA TOPCON |
4 |
9 |
8 |
5 |
6 |
32 |
BAUSCH & LOMB, INC. |
8 |
6 |
5 |
5 |
6 |
30 |
CANON KABUSHIKI KAISHA |
10 |
3 |
6 |
5 |
4 |
28 |
JOHNSON & JOHNSON VISION CARE, INC. |
0 |
0 |
4 |
10 |
7 |
21 |
ESSILOR INTERNATIONAL COMPAGNIE GENERALE D OPTIQUE |
4 |
3 |
5 |
5 |
2 |
19 |
NIKON CORPORATION |
11 |
4 |
1 |
0 |
0 |
16 |
JOHNSON & JOHNSON VISION PRODUCTS, INC. |
5 |
2 |
3 |
4 |
0 |
14 |
CARL ZEISS, INC. |
2 |
1 |
2 |
3 |
5 |
13 |
OAKLEY, INC. |
4 |
2 |
4 |
3 |
0 |
13 |
MENICON CO., LTD. |
1 |
0 |
6 |
3 |
2 |
12 |
HOYA CORPORATION |
3 |
2 |
3 |
2 |
1 |
11 |
SEIKO EPSON CORPORATION |
3 |
3 |
3 |
2 |
0 |
11 |
SOLA INTERNATIONAL HOLDINGS LTD. |
0 |
2 |
2 |
2 |
5 |
11 |
WESLEY-JESSEN CORPORATION |
1 |
2 |
2 |
5 |
1 |
11 |
CABOT SAFETY INTERMEDIATE CORPORATION |
1 |
3 |
3 |
3 |
0 |
10 |
CONTOUR OPTIK INC. |
0 |
4 |
3 |
1 |
2 |
10 |
OCULUS-OPTIKGERATE G.M.B.H. |
1 |
4 |
0 |
3 |
2 |
10 |
INNOTECH, INC. |
3 |
5 |
1 |
0 |
0 |
9 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
2 |
0 |
2 |
3 |
1 |
8 |
CARL ZEISS JENA GMBH |
1 |
3 |
1 |
1 |
2 |
8 |
LASERSIGHT TECHNOLOGIES, INC. |
0 |
1 |
1 |
3 |
3 |
8 |
OPTISCHE WERKE G. RODENSTOCK |
2 |
3 |
1 |
2 |
0 |
8 |
UNIVERSITY OF ROCHESTER |
1 |
1 |
1 |
3 |
2 |
8 |
CARL ZEISS STIFTUNG |
1 |
2 |
2 |
0 |
1 |
6 |
MASUNAGA OPTICAL MFG. CO., LTD. |
2 |
1 |
0 |
1 |
2 |
6 |
UNITED STATES OF AMERICA, NAVY |
0 |
1 |
3 |
0 |
2 |
6 |
VIRTUAL-EYE.COM, INC. |
0 |
1 |
3 |
1 |
1 |
6 |
KOWA COMPANY LTD. |
1 |
0 |
1 |
2 |
1 |
5 |
LINDBERG A/S |
0 |
1 |
0 |
4 |
0 |
5 |
PARETO CORPORATION |
1 |
0 |
1 |
3 |
0 |
5 |
VOLK OPTICAL, INC. |
3 |
1 |
1 |
0 |
0 |
5 |
PTMD Contacts
Questions regarding these reports should be directed to:
U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
PK3- Suite 441; P.O Box 1450
Alexandria VA 22313
tel: (703) 306-2600
fax: (703) 306-2737
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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