PATENT CLAIM ANALYSIS

Application Number: 16010972
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["548", "546000"]

Abstract:
A hydrophilic polymer derivative having a benzylidene acetal linker whose hydrolysis rate at the pH of a weakly acidic environment in the living body can be accurately controlled. A hydrophilic polymer derivative having a benzylidene acetal linker, which is represented by the following formula (1): wherein R 1  is a hydrogen atom or a hydrocarbon group; R 2 , R 3 , R 4 , R 5 , and R 6  are each independently a hydrogen atom or a substituent and at least one of R 3 , R 4 , and R 5  is an electron-withdrawing substituent or at least one of R 2  and R 6  represents a substituent; X 1  is a chemically reactive functional group; P is a hydrophilic polymer; w is an integer of 1 to 8; and Z 1  and Z 2  are an independently selected divalent spacer.

Claim (Index 10):
The hydrophilic polymer derivative according to  claim 4 , wherein X 2  is selected from the group consisting of the formula (a), the formula (b), the formula (c), the formula (d), the formula (e), the formula (f), the formula (g), the formula (h), the formula (i), the formula (j), the formula (k), the formula (l), the formula (m), and the formula (n): wherein R 7  is a hydrogen atom or a sulfo group;\n R 8  and R 11  are independently a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms; \n R 9  is a hydrocarbon group having 1 to 10 carbon atoms, which may contain a halogen atom; and \n R 10  is a halogen atom selected from a chlorine atom, a bromine atom, and an iodine atom.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 94.0
- Lexical Diversity: 2.09459
- Patent Class: 548.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15764441', '15512727', '10048230', '12399249', '11142683']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.747271347414691
- 35 USC 102 Novelty (BERT): 0.5460777687373322
- Combined Prediction Score: 0.7271519895469551
- Mean Citation Score: 274.99311
- Max Citation Score: 394.31882
- Similarity Product: 298.25412547442795

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