PATENT CLAIM ANALYSIS

Application Number: 16216826
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["508", "454000"]

Abstract:
Lubricant compositions including an additive composition and methods for its use in engines that produce soot. The lubricant composition contains a base oil and an additive composition having (a) at least 0.05 percent by weight of a first dispersant that is a reaction product of A) a hydrocarbyl-dicarboxylic acid or anhydride, and B) at least one polyamine; and (b) at least 0.05 percent by weight, both based on a total weight of the lubricant composition, of a second dispersant that is a reaction product of A′) a hydrocarbyl-dicarboxylic acid or anhydride, and B′) at least one polyamine, wherein the reaction product is post-treated with C) an aromatic carboxylic acid, an aromatic polycarboxylic acid, or an aromatic anhydride wherein all carboxylic acid or anhydride groups are attached directly to an aromatic ring, and/or D) a non-aromatic dicarboxylic acid or anhydride having a number average molecular weight of less than about 500.

Claim (Index 17):
An engine oil composition comprising:\n about 50% to about 99% by weight of a base oil, based on the total weight of the engine oil composition, and an additive composition, said additive composition comprising: (a) at least 0.05 percent by weight, based on a total weight of the engine oil composition, of a first dispersant that is a reaction product of A) a hydrocarbyl-dicarboxylic acid or anhydride, and B) at least one polyamine wherein said reaction product is post-treated with a non-aromatic dicarboxylic acid or anhydride having a number average molecular weight of less than about 500; and (b) at least 0.05 percent by weight, based on a total weight of the engine oil composition, of a second dispersant that is a reaction product of A\u2032) a hydrocarbyl-dicarboxylic acid or anhydride, and B\u2032) at least one polyamine, and wherein said reaction product is post-treated with C) an aromatic carboxylic acid, an aromatic polycarboxylic acid, or an aromatic anhydride wherein all carboxylic acid or anhydride groups are attached directly to an aromatic ring, wherein the reaction product of the second dispersant has a ratio of A\u2032 to B\u2032 in the range of 4:3 to 2:1.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 98.0
- Lexical Diversity: 2.08537
- Patent Class: 508.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15156372', '15837379', '13549697', '13202647', '14701899']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8475149472806427
- 35 USC 102 Novelty (BERT): 0.6472186026772793
- Combined Prediction Score: 0.8274853128203065
- Mean Citation Score: 398.487514
- Max Citation Score: 523.23376
- Similarity Product: 497.14298536986354

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