PATENT CLAIM ANALYSIS

Application Number: 15745471
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["570", "158000"]

Abstract:
The present invention provides a method of producing 2,3,3,3-tetrafluoropropene (HFO-1234yf), wherein the method comprises two or more reaction steps, at least one of said reaction steps comprising the production of 1,3,3,3-tetrafluoropropene (HFO-1234ze) and/or one or more HFO-1234ze precursors from one or more HFO-1234yf precursors, wherein at least a portion of the HFO-1234ze is recovered.

Claim (Index 1):
A method of producing 2,3,3,3-tetrafluoropropene (HFO-1234yf), wherein the method comprises two or more reaction steps, at least one of said reaction steps comprising the production of 1,3,3,3-tetrafluoropropene (HFO-1234ze) and/or one or more HFO-1234ze precursors from one or more HFO-1234yf precursors, wherein at least a portion of the HFO-1234ze is recovered and at least a portion of the HFO-1234ze precursors following one or more of the reaction steps is passed directly or indirectly to the following or a following reaction step, if present, and/or is recycled to a preceding reaction step if present; and\n wherein the HFO-1234yf precursors comprise compounds according to the formula\n F 3 C\u2014CXX\u2014CH 2 X \n where each X is independently H or a halogen and wherein at least 2 X groups are a halogen; or\n F 3 C\u2014CX\u2550CH 2  \n where X is a halogen; and wherein the HFO-1234ze precursors comprise compounds according to the formula\n F 3 C\u2014CH 2 \u2014CHX 2  \n where each X is independently a halogen; or\n F 3 C\u2014CH\u2550CHX \n where X is a halogen, wherein one of the reaction steps \u201cA\u201d comprises exposing a feed stream \u201cA\u201d comprising HFO-245cb to conditions suitable for dehydrofluorination to produce a product stream \u201cA\u201d which comprises HFO-1234yf and wherein the method further comprises a preceding reaction step \u201cB\u201d which comprises contacting a feed stream \u201cB\u201d comprising HCFO-1233xf with HF in conditions sufficient to hydrofluorinate HCFO-1233xf to form a product stream \u201cB\u201d comprising HFC-245cb.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 86.0
- Lexical Diversity: 1.72222
- Patent Class: 570.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14503765', '15270074', '16060037', '14643668', '12937661']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7848029406521122
- 35 USC 102 Novelty (BERT): 0.5805072521963598
- Combined Prediction Score: 0.764373371806537
- Mean Citation Score: 498.01555
- Max Citation Score: 523.0107
- Similarity Product: 388.9355766042352

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