PATENT CLAIM ANALYSIS

Application Number: 16071516
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-04
Patent Classification: ["546", "296000"]

Abstract:
4-Alkoxy-3-hydroxypicolinic acids may be conveniently prepared from 4,6-dibromo-3-hydroxypicolinonitrile in a series of chemical steps selected from bromo substitution, nitrile hydrolysis and halogen reduction that are conducted as a single pot process. 4,6-Dibromo-3-hydroxypicolinonitrile may be prepared from furfural in a series of chemical steps selected from cyano-amination, amine salt formation and bromination-rearrangement.

Claim (Index 1):
A process for the preparation of a compound of Formula A wherein R 1  is a C 1 -C 3  alkyl; from a compound of Formula B which comprises the following steps: a) creating a first mixture containing an alkali metal alkoxide of Formula C\n MOR 1  \u2003\u2003C \n wherein M is Na or K, and R 1  is C 1 -C 3  alkyl; and the compound of Formula B and heating the first mixture; b) creating a second mixture by adding water, a strong base, and zinc metal to the first mixture; c) heating the second mixture; and d) isolating the compound of Formula A.

Metadata:
- Claim Count in Document: 31.0
- Percentile: 95.0
- Lexical Diversity: 1.44737
- Patent Class: 546.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14794450', '14794430', '16071512', '15339190', '15443446']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7800368869819851
- 35 USC 102 Novelty (BERT): 0.5301611646125197
- Combined Prediction Score: 0.7550493147450386
- Mean Citation Score: 310.3244660000001
- Max Citation Score: 342.7276
- Similarity Product: 262.2060567025661

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

Dataset: test