PATENT CLAIM ANALYSIS

Application Number: 15895677
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["514", "055000"]

Abstract:
The present invention comprises chitosan materials and methods of using carbonic acid for aqueous solubilization of neutralized or pre-treated chitosan gels and provides, among other things, substantially acid salt free composition native final forms without requiring subsequent acid salt elution. The invention includes chitosan-based solid and semi-solid material forms, optionally reinforced with chitosan fibers, such as powders, fibers, films, matrices, sponges, implants, scaffolds, fillers, and hydrogels. Native final forms are produced from chitosan powder solubilized in an aqueous acidic solution, processed to form a high pH hydrated chitosan gel precipitate material that is then neutralized by water washing and re-solubilized substantially to chitosan solution using carbonic acid. Chitosan materials can be mixed in solution with one or more of other hydrophilic polymers to create compositional heterogeneity and pharmaceutical agents to achieve controlled release of the agent(s) from the final forms at the site of application.

Claim (Index 1):
A solid or semi-solid composition comprising a substantially acid salt free chitosan solubilized gel material.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 88.0
- Lexical Diversity: 1.57143
- Patent Class: 514.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14614316', '15371010', '12925292', '13052463', '11124916']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7541928500379136
- 35 USC 102 Novelty (BERT): 0.6188512472742513
- Combined Prediction Score: 0.7406586897615474
- Mean Citation Score: 294.112314
- Max Citation Score: 607.2465
- Similarity Product: 499.2977262023091

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

Dataset: test