PATENT CLAIM ANALYSIS

Application Number: 16304057
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-06
Patent Classification: ["564", "033000"]

Abstract:
The present invention relates to an improved process for preparation of carmustine (I). The present invention also relates to preparation of 1,3-bis(2-chloroethyl)urea (II) an intermediate used in preparation of carmustine.

Claim (Index 2):
A process for preparation of carmustine (I) comprising steps of:\n a) converting 2-chloroethylamine (III) to 1,3-bis(2-chloroethyl)urea (II) \n in absence of phosgene.\n b) converting urea of formula (II) to carmustine (I).

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 1.66667
- Patent Class: 564.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15444776', '13508020', '14423550', '14936227', '12993011']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6877277918665107
- 35 USC 102 Novelty (BERT): 0.5190486482443751
- Combined Prediction Score: 0.6708598775042971
- Mean Citation Score: 193.648104
- Max Citation Score: 278.47714
- Similarity Product: 236.33385153749344

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