PATENT CLAIM ANALYSIS

Application Number: 15872641
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["166", "294000"]

Abstract:
An expansive additive composition for use in Portland cements and a method of using such an additive composition is provided. The additive composition can include a calcium aluminate cement additive and a lithium compound. The additive composition is capable of producing expansion in set cements when the temperature is at or below room temperature and minimizes the amount of calcium aluminate cement additive needed.

Claim (Index 20):
A method of using an expansion additive composition, the method comprising:\n mixing an additive composition, a Portland cement and water so as to form a slurry, wherein the additive composition comprises:\n a calcium aluminate cement in an amount from about 1.0% to about 5.0% by weight of said Portland cement; \n a lithium salt in an amount from about 0.005% to about 0.150% by weight of said Portland cement, wherein the lithium salt is selected from the group consisting of lithium carbonate, lithium halides, lithium sulfate, hydrates of lithium sulfate, lithium nitrate, lithium hydroxide, and mixtures thereof; \n calcium sulfate present in an amount from about 1% to about 15% by weight of said Portland cement; \n calcium hydroxide present in an amount from about 0.1% to about 3.0% by weight of said Portland cement; and \n sodium bicarbonate present in an amount from about 0.01% to about 1.00% by weight of said Portland cement; and \n introducing the slurry into an annulus between a casing and a borehole wall, wherein said borehole wall and said casing are at a temperature below about 100\u00b0 F., and wherein said composition results in a 10% increase in volume of the slurry when setting occurs at a temperature of below 100\u00b0 F. (37.8\u00b0 C.).

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 1.63415
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15319309', '15500428', '15579590', '15329201', '14621179']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7830475895789121
- 35 USC 102 Novelty (BERT): 0.509654184240228
- Combined Prediction Score: 0.7557082490450436
- Mean Citation Score: 235.311152
- Max Citation Score: 336.3119999999999
- Similarity Product: 274.5174250888824

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test