Synthesis of chromanol derivatives

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12103918
APP PUB NO 20210309626A1
SERIAL NO

17268981

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to a process for the production of chromanol derivatives, more specifically to a process for preparing a compound of the general formula (I) wherein R1, R2 and R3 independently of each other are selected from hydrogen and methyl, R4 is selected from hydrogen and C1-C6-alkanoyl, and X is selected from C1-C20-alkyl and C2-C20-alkenyl.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BASF SECARL-BOSCH-STRASSE 38 67056 LUDWIGSHAFEN AM RHEIN GERMANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Puhl, Michael Ludwigshafen am Rhein, DE 82 419
Siegel, Wolfgang Ludwigshafen am Rhein, DE 150 1245
Weingarten, Melanie Ludwigshafen am Rhein, DE 21 35

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Apr 1, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 1, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 1, 2036
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