Bridged alkaline earth metal alkylphenates

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9745326
SERIAL NO

14175164

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A bridged alkaline earth metal alkylphenate having reduced monomeric alkylphenol is prepared by reacting (a) a 4-alkylphenol, unsubstituted at the ortho positions, (b) an alkaline earth metal oxide or hydroxide, (c) a bridging agent comprising sulfur or a carbonyl compound of 1 to about 6, or to 4 or to 2, carbon atoms, and (d) a 2,6-dialkylphenol. The amount of the 2,6-dialkylphenol is 0.05 to 3 moles per 1 mole of the 4-alkylphenol; if there is a molar excess of the 2,6-dialkylphenol, then the excess is added after initial reaction.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
THE LUBRIZOL CORPORATION29400 LAKELAND BLVD WICKLIFFE OH 44092-2298

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ciolli, Christopher J Perry, US 3 2
Friend, Christopher L Willoughby, US 24 56
Perera, Jayasooriya Sujith Twinsburg, US 7 6
Walker, Gary M Allestree, GB 32 55

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Feb 28, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 28, 2029
Fee Large entity fee small entity fee micro entity fee
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