PATENT CLAIM ANALYSIS

Application Number: 15780086
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["564", "067000"]

Abstract:
A shell-and-tube stripper for carbamate decomposition and ammonia recovery from a urea solution comprising a bundle of heated tubes, said tubes being fed with said urea solution and carbon dioxide as stripping medium, the urea solutions forming a liquid falling film on the internal surface of the tubes and the carbon dioxide forming a counter-current gaseous flow; said tubes comprise an external layer made of super austenitic or super duplex stainless steel and an internal layer made of zirconium, said internal layer reaching temperatures higher than 220° C.

Claim (Index 7):
The process according to  claim 1 , further comprising providing a stripped solution comprising urea in a concentration of at least 70% by weight.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 93.0
- Lexical Diversity: 1.55
- Patent Class: 564.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14655330', '15126212', '12601103', '15576214', '13140286']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7483468912318947
- 35 USC 102 Novelty (BERT): 0.5450176765438799
- Combined Prediction Score: 0.7280139697630932
- Mean Citation Score: 328.625508
- Max Citation Score: 337.7508200000001
- Similarity Product: 216.52574596161847

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

Dataset: test