PATENT CLAIM ANALYSIS

Application Number: 15759295
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["424", "649000"]

Abstract:
A DDS preparation of a platinum complex, which selectively releases a highly active platinum complex in cells that are under reducing conditions, and exhibits high antitumor activity that is required from a medicine, is still not available, and there is a demand for a novel DDS preparation of a platinum complex that may be used in clinical fields. There is provided a polymer conjugate of a hexa-coordinated platinum complex, the polymer conjugate comprising a block copolymer having a polyethylene glycol structural moiety and a polyaspartic acid moiety or a polyglutamic acid moiety; and a hexa-coordinated platinum complex having a halogen atom and a hydroxyl group at the axial positions, the hexa-coordinated platinum complex being bonded, directly or via a spacer, to a side-chain carboxyl group of the block copolymer.

Claim (Index 7):
The polymer conjugate of a hexa-coordinated platinum complex according to  claim 6 , wherein R 11  represents a (C1-C3) alkyl group which may have a substituent; R 19  represents a (C2-C6) alkylene group; R 20  represents a (C1-C3) acyl group; R 21  represents a residue of a hexa-coordinated complex having a halogen atom and a hydroxyl group at the axial positions, or a substituent selected from the group consisting of the following Formula (IX): [wherein W, T, and R 8  mean the same groups as W, T, and R 8  of Formula (VII), respectively], provided that at least one W among the substituents represents a residue of a hexa-coordinated platinum complex having a halogen atom and a hydroxyl group at the axial positions; b represents an integer from 10 to 2,000; k represents an integer from 1 to 100; m and n each represents an integer from 0 to 100; and k+m+n represents an integer from 3 to 100.

Metadata:
- Claim Count in Document: 22.0
- Percentile: 90.0
- Lexical Diversity: 1.84211
- Patent Class: 424.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15548259', '12312009', '13319175', '12226962', '12225230']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7895588531548058
- 35 USC 102 Novelty (BERT): 0.5167199160935996
- Combined Prediction Score: 0.7622749594486852
- Mean Citation Score: 282.07612200000005
- Max Citation Score: 302.37155
- Similarity Product: 216.13294917681813

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