PATENT CLAIM ANALYSIS

Application Number: 15779654
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["428", "500000"]

Abstract:
Provided is a coating agent which can be stably immobilized on metal surface, and which can give blood compatibility. Provided is a copolymer which is usable as the above-mentioned coating agent that comprises PEG segment and a segment which has a phosphoric acid residue (PO(—OH) 2 ) and a cyclic nitroxideradical randomly as a side chain or a pendant group.

Claim (Index 1):
A copolymer of the following formula (I): wherein A denotes a hydrogen atom, an unsubstituted or substituted C 1-12  alkyl, substituent, when the alkyl is substituted, being a formyl group or a group of formula R 1 R 2 CH\u2014 wherein R 1  and R 2  independently denote C 1-4  alkoxy or denote, when put together, \u2014OCH 2 CH 2 O\u2014, \u2014O(CH 2 ) 3 O\u2014 or \u2014O(CH 2 ) 4 O\u2014; L denotes either a bond or a linker which is selected from the group consisting of the following formulae: \u2014(CH 2 ) c S\u2014, \u2014CO(CH 2 ) c S\u2014, \u2014(CH 2 ) c NH\u2014, \u2014(CH 2 ) c CO\u2014, \u2014CO\u2014, \u2014COO\u2014, and \u2014CONH\u2014; X 1  is selected from the groups, which are covalently bonded via \u2014(CH 2 ) a \u2014NH\u2014(CH 2 ) a \u2014 or \u2014(CH 2 ) a \u2014O\u2014(CH 2 ) a \u2014, of formulae: X 2  denotes PO(\u2014OH) 2 ; Y denotes H, SH or S\u2014C(\u2550S)\u2014Ph wherein Ph denotes a phenyl which may be substituted by one or two methyl or methoxy groups; a's independently denote an integer of 0 to 5; b denotes an integer of 2 to 6; c's denote an integer of 1 to 5; m is an integer of 2 to 10,000; n is an integer of 1 to 360; and k is an integer of 1 to 480; provided that up to 50% of n X's or up to 50% of k Y's may respectively be H, halogen or hydroxyl; and also provided that n units in the corresponding repeating units and k units in the corresponding repeating units are randomly present.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 93.0
- Lexical Diversity: 1.48889
- Patent Class: 428.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15566237', '11884146', '13812383', '14363884', '13258663']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9132881184626443
- 35 USC 102 Novelty (BERT): 0.4496899924303961
- Combined Prediction Score: 0.8669283058594197
- Mean Citation Score: 169.78896
- Max Citation Score: 178.96375
- Similarity Product: 161.13891477666797

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