PATENT CLAIM ANALYSIS

Application Number: 15754388
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["423", "531000"]

Abstract:
In a production mode a process for preparing sulfuric acid may involve oxidizing sulfur to sulfur dioxide in a first oxidation stage, and catalytically oxidizing the sulfur dioxide to sulfur trioxide in a second oxidation stage. The sulfur trioxide may be absorbed in at least one absorption stage. In the production mode, process gases from a last of the at least one absorption stage with respect to a flow direction are discharged. In a standby mode of the process, at least one heating stage for heating the process gases is connected. The process gases exiting from the at least one absorption stage are conveyed to the heating stage, and the process gases are circulated via the heating stage, the second oxidation stage, and the absorption stage.

Claim (Index 11):
A process for preparing sulfuric acid, wherein in a production mode the process comprises:\n oxidizing sulfur to sulfur dioxide in a first oxidation stage; catalytically oxidizing the sulfur dioxide to sulfur trioxide in a second oxidation stage; and introducing the sulfur trioxide into at least one absorption stage for absorption of the sulfur trioxide, wherein process gases are discharged from the at least one absorption stage in a flow direction, wherein in a standby mode the process comprises:\n heating the process gases in a heating stage disposed upstream of the second oxidation stage with respect to the flow direction of the process gases, wherein the process gases exiting from the at least one absorption stage are fed or recirculated to the heating stage and the process gases are circulated via the heating stage, the second oxidation stage, and the at least one absorption stage.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 88.0
- Lexical Diversity: 2.68627
- Patent Class: 423.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15754436', '14216084', '11579435', '13574023', '16098818']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7886378936689582
- 35 USC 102 Novelty (BERT): 0.4897338907404208
- Combined Prediction Score: 0.7587474933761045
- Mean Citation Score: 212.38702200000003
- Max Citation Score: 246.8688
- Similarity Product: 205.34914251651765

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

Dataset: test