PATENT CLAIM ANALYSIS

Application Number: 15957339
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["202", "163000"]

Abstract:
Disclosed herein are compositions and methods of mitigating scale in phosphoric acid and ammonium phosphate plants. Scale-mitigating compositions of the invention can be added to phosphoric acid before or during the concentration in the evaporator cycle of a phosphoric acid plant. The compositions retard the formation of scale on surfaces in contact with the phosphoric acid, and thus time between cleaning is extended and plant productivity increased. Further, the scale that forms is softer and more easily cleaned from surfaces, reducing non-operation time of the plant and/or evaporator. Methods of mitigating scale formation in phosphoric acid production and phosphoric acid handling plants are disclosed. In the methods, scales accumulate more slowly and are softer, more tractable, and more easily cleaned from surfaces to which they adhere.

Claim (Index 17):
An aqueous scale-mitigating composition comprising the scale-mitigating composition of  claim 16  and water, the aqueous scale-mitigating composition comprising from 5% to 15% by weight of the polyamino polyether methylene tetraphosphonate, from 5% to 15% by weight of the copolymer of acrylic acid and 2-acrylamido-2-methylpropane sulfonic acid, from 1% to 10% by weight of the poly(methacrylic acid), and from 5% to 15% by weight of the copolymer of acrylic acid and hydroxypolyethoxy allyl ether.

Metadata:
- Claim Count in Document: 16.0
- Percentile: 91.0
- Lexical Diversity: 1.97143
- Patent Class: 202.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['12888861', '13053988', '14858774', '12888853', '11780493']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6818828522301779
- 35 USC 102 Novelty (BERT): 0.5108813409844032
- Combined Prediction Score: 0.6647827011056004
- Mean Citation Score: 180.844964
- Max Citation Score: 193.31523
- Similarity Product: 123.9454419703102

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