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

Patent Owner(s)

Patent Owner	Address
COVESTRO DEUTSCHLAND AG	51373 LEVERKUSEN

International Classification(s)

• C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Huber, Hans-Peter	Cologne, DE	13	196
Knaup, Harald	Neuss, DE	7	10
Nefzger, Hartmut	Pulheim, DE	110	363
Reiter, Stephan	Langenfeld, DE	10	36
Stumpf, Andreas	Palm Jumeirah, AE	23	78

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Sep 12, 2027
7.5 Year Payment	$3600.00	$1800.00	$900.00	Sep 12, 2031
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 12, 2035

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 12, 2024	US,11926701,B2   US11926701B2	GRANTED PATENT AS SECOND PUBLICATION
March 30, 2023	US,20230098913,A1   US20230098913A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 11926701

Polycarbonate polyols, polyisocyanate prepolymers and polyurethane and polyurethane urea elastomers based thereon

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