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 17):
An apparatus for preparing sulfuric acid, the apparatus comprising:\n a first oxidation facility for producing sulfur dioxide; a second oxidation facility connected to the first oxidation facility for oxidation of the sulfur dioxide to sulfur trioxide; and at least one absorption apparatus that is connected to the second oxidation facility for absorbing the sulfur trioxide, wherein a last absorption apparatus of the at least one absorption apparatus with respect to a flow direction of the process gas discharged from the at least one absorption apparatus includes a closeable discharge conduit and a closeable process gas conduit, wherein the closeable discharge conduit is open and the closeable process gas conduit is closed in a production mode of the apparatus and the closeable discharge conduit is closed and the closeable process gas conduit is open for circulation of the process gases in a standby mode of the apparatus, wherein the process gas conduit is connected to a heating device for heating the process gases, with the heating device being connected via a connecting line to the second oxidation facility so that heated process gases from the heating device are introducible into the second oxidation facility in the standby mode of the apparatus.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 88.0
- Lexical Diversity: 2.68627
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15754436', '14216084', '11579435', '13574023', '16098818']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7667754742775406
- 35 USC 102 Novelty (BERT): 0.4960053347629744
- Combined Prediction Score: 0.739698460326084
- Mean Citation Score: 212.38702200000003
- Max Citation Score: 246.8688
- Similarity Product: 183.5691997524261

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