PATENT CLAIM ANALYSIS

Application Number: 15970591
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["585", "802000"]

Abstract:
A method for providing upgraded biogas includes feeding a stream of biogas into a biogas upgrading system in order to remove carbon dioxide from the stream of biogas. The biogas upgrading system, which may be based on absorption, adsorption, membrane permeation, and/or cryogenics, provides a stream of upgraded biogas and a tail gas stream. The tail gas stream, which may be CO 2 -rich, is enriched with natural gas so that it is combustible in medium-BTU equipment. The upgraded biogas is used for transportation use and/or the generation of fuel credits. Accordingly, both the tail gas and the upgraded biogas are used effectively and at lower cost.

Claim (Index 46):
A system for upgrading biogas comprising:\n a separating unit configured to remove carbon dioxide from biogas to provide upgraded biogas and tail gas, said separating unit including a first inlet in fluid communication with a biogas source, a second inlet in fluid communication with a natural gas source, a first outlet configured to provide the upgraded biogas, and a second outlet configured to provide the tail gas, wherein the separating unit comprises a membrane having a feed side and a permeate side, and wherein said separating unit is configured to feed biogas received at the first inlet across the feed side of the membrane and to feed natural gas received at the second inlet across the permeate side of the membrane as a sweep gas such that natural gas is conveyed with carbon dioxide removed from the biogas to the second outlet.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 93.0
- Lexical Diversity: 1.81818
- Patent Class: 585.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15458760', '12699395', '12454084', '15887588', '15051984']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6808514536410537
- 35 USC 102 Novelty (BERT): 0.6195885290154084
- Combined Prediction Score: 0.6747251611784891
- Mean Citation Score: 330.334812
- Max Citation Score: 612.0327
- Similarity Product: 498.493176472342

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