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

Patent Owner(s)

Patent Owner	Address
PURDUE PHARMA PRODUCTS L P	201 TRESSER BOULEVARD ONE STAMFORD FORUM STAMFORD CT 06901
NAPP PHARMACEUTICAL GROUP LIMITED	CAMBRIDGE SCIENCE PARK MILTON ROAD CAMBRIDGE CB4 0AB

International Classification(s)

• A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Brown, Miller Ronald	Basic, CH	2	113
Hahn, Udo	Nentersflausen, DE	13	833
Leslie, Stewart Thomas	Cambridge, GB	21	2611
Malkowska, Sandra Therese Antoinette	Cambridge, GB	16	2212
Prater, Derek Allan	Cambridge, GB	33	2806
Smith, Kevin John	Cambridge, GB	16	919
Wimmer, Walter	Limburg, DE	13	852
Winkler, Horst	Linter, DE	9	663

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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 Application No: 2006/0269,603

Controlled release tramadol formulations

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