PATENT CLAIM ANALYSIS

Application Number: 16333841
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-08
Patent Classification: ["166", "270100"]

Abstract:
The present invention provides methods of using a mixture of two or more nonionic surfactants for enhanced oil recovery, where each nonionic surfactant is prepared with a double metal cyanide catalyst. The present invention also provides for an emulsion that includes carbon dioxide, a diluent and the mixture of nonionic surfactants.

Claim (Index 2):
The method of  claim 1 , where the mixture of nonionic surfactants comprise (A) a first nonionic surfactant which is a block copolymer reaction product of an alphatic alcohol, R 1 OH, with propylene oxide (PO), ethylene oxide (EO), and optionally butylene oxide (BO) represented by the following formula:\n R 1 \u2014O\u2014BO x \u2014PO y -EO z \u2003\u2003I wherein R 1  is a linear or branched C 1  to C 20  alkyl group; x is 0 to 5; y is 0 to 10; and z is 0 to 25; wherein the alphatic alcohol R 1 OH may be reacted with PO, EO, and optionally BO in any order and (B) a second nonionic surfactant which is a block copolymer reaction product of an alphatic alcohol, R 2 OH with propylene oxide (PO), ethylene oxide (EO), and optionally butylene oxide (BO) represented by the following formula:\n R 2 \u2014O\u2014BO 1 \u2014PO m -EO n \u2003\u2003II \n wherein R 2  may be the same or different than R 1  and is a linear or branched C 1  to C 20  alkyl group; 1 is 0 to 5; m is 0 to 10 and n is equal to or greater than z+4 and equal to or less than 50, wherein the alphatic alcohol R 2 OH may be reacted with PO, EO, and optionally BO in any order.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 99.0
- Lexical Diversity: 1.375
- Patent Class: 166.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14347143', '15136289', '14343905', '13085248', '14201323']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8412671563383228
- 35 USC 102 Novelty (BERT): 0.5450327500637628
- Combined Prediction Score: 0.8116437157108669
- Mean Citation Score: 368.05954
- Max Citation Score: 433.2531
- Similarity Product: 356.3909042498946

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