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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
MINNESOTA MINING AND MANUFACTURING COMPANY	P O BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

• G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Forester, Thomas E	South St. Paul, MN	2	58
Goodbrake, Chris J	Inver Grove Heights, MN	5	137
Hachey, Kathleen A	Hudson, WI	7	242
Hedblom, Thomas P	Eagan, MN	34	683
Humpal, Kathleen M	Woodbury, MN	22	336
Lange, Roger W	Maplewood, MN	10	608
Mathers, James P	Woodbury, MN	17	660
May, David C	Hudson, WI	36	854
Moh, Kyung H	Woodbury, MN	18	408

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 5774265

Durable retroreflective elements

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