PATENT CLAIM ANALYSIS

Application Number: 16402989
Application Type: Utility
Filing Date: 2019-05
Publication Date: 2019-12
Patent Classification: ["123", "00100A"]

Abstract:
The present disclosure provides fuel additives including a quaternary ammonium salt formed by reacting an alkyl carboxylate with a compound formed from a hydrocarbyl substituted acylating agent reacted with a select amine. Also provided herein are fuel compositions including the novel fuel additives and methods of combusting a fuel including the fuel additives herein. The unique quaternary ammonium salts herein are advantageous because they can be made through a simple alkylation process and provide improved detergency at low treat rates by making available a relatively less sterically hindered quaternary nitrogen for detergency activity in the fuel.

Claim (Index 18):
A method of operating a fuel injected engine to provide improved engine performance, the method comprising combusting in the engine a fuel composition including a major amount of fuel and about 1 to about 100 ppm of a quaternary ammonium salt formed by the reaction of an alkyl carboxylate with a compound obtained by reacting a hydrocarbyl substituted acylating agent and an amine, wherein the amine has the structure wherein\n A is a hydrocarbyl linker with 2 to 10 carbon units and including one or more carbon units thereof independently replaced with a bivalent moiety selected from the group consisting of \u2014O\u2014, \u2014N(R\u2032)\u2014, \u2014C(O)\u2014, \u2014C(O)O\u2014, \u2014C(O)NR\u2032; \n R 1  and R 2  are independently alkyl groups containing 1 to 8 carbon atoms; and \n R\u2032 is independently a hydrogen or a group selected from C 1-6  aliphatic, phenyl, or alkylphenyl.

Metadata:
- Claim Count in Document: 56.0
- Percentile: 100.0
- Lexical Diversity: 1.45588
- Patent Class: 123.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['16009403', '14703939', '14048879', '14315302', '15747950']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7508173909245475
- 35 USC 102 Novelty (BERT): 0.5436948471856192
- Combined Prediction Score: 0.7301051365506547
- Mean Citation Score: 333.566502
- Max Citation Score: 415.62576
- Similarity Product: 403.53766447854986

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test