PATENT CLAIM ANALYSIS

Application Number: 16129979
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["564", "236000"]

Abstract:
Methods for removing oxyanions from water according to the following steps: (i) dissolving an oxyanion precipitating compound into the aqueous source to result in precipitation of an oxyanion salt of the oxyanion precipitating compound; and (ii) removing the oxyanion salt from the water containing the oxyanion to result in water substantially reduced in concentration of the oxyanion; wherein the oxyanion precipitating compound has the following composition: wherein A is a ring-containing moiety and X m−  is an anionic species with a magnitude of charge m. The invention employs bis-iminoguanidinium compounds according to Formula (1a) as well as neutral precursor compounds according to Formula (1), which can be used for removing undesirable species from aqueous solutions or air, such as removal of sulfate from water and carbon dioxide from air.

Claim (Index 27):
A method for removing carbon dioxide from a gaseous source, the method comprising:\n (i) contacting said gaseous source with an aqueous solution containing a carbon dioxide complexing compound to result in precipitation of a carbonate or bicarbonate salt of said carbon dioxide complexing compound; and (ii) removing said carbonate or bicarbonate salt from said aqueous solution; wherein said carbon dioxide complexing compound has the following composition: wherein: A is a ring-containing moiety; one or more of the hydrogen atoms in Formula (1) may be replaced with one or more methyl groups; X m\u2212  is an anionic species with a magnitude of charge m, where m is an integer of at least 1, provided that X m\u2212  is hydroxide in said carbon dioxide complexing compound before said carbon dioxide complexing compound is contacted with carbon dioxide in step (i), and X m\u2212  is carbonate or bicarbonate in said carbonate or bicarbonate salt; and n is an integer of at least 1; provided that n\u00d7m=2.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 97.0
- Lexical Diversity: 1.84615
- Patent Class: 564.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15978323', '16092103', '13757550', '12235482', '12962423']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6860049173316397
- 35 USC 102 Novelty (BERT): 0.5375778762192259
- Combined Prediction Score: 0.6711622132203984
- Mean Citation Score: 208.415556
- Max Citation Score: 325.25415
- Similarity Product: 268.9410651505172

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

Dataset: test