PATENT CLAIM ANALYSIS

Application Number: 15757343
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["029", "592100"]

Abstract:
A carburized La 2 O 3  and Lu 2 O 3  co-doped Mo filament cathode and its fabrication method, which belongs to the technical field of rare earth-refractory metal cathodes. The rare earth oxides are La 2 O 3  and Lu 2 O 3 , and the total concentration of rare earth oxides ranges from 2.0-5.0 wt. %. The La 2 O 3  and Lu 2 O 3  co-doped molybdenum oxide powers are prepared by Sol-Gel method. La 2 O 3  and Lu 2 O 3  co-doped Mo powers are prepared by two calcining steps. Then pressing and sintering the mixed powders to obtain the molybdenum rods; operating mechanical and heat processes of the molybdenum rods to obtain molybdenum filament. Operating electrolytic cleaning, straightening, winding modeling and cutting treatments with Mo filament to obtain the un-carburized La 2 O 3  and Lu 2 O 3  co-doped Mo cathode. And then carburize the filament cathode at a high temperature for a short time to obtain a cathode with high carburization degree. And then operate the out-gassing treatment and activation treatment with the cathode at a high temperature to obtain an environmental and non-radioactive cathode with good emission current and emission stability.

Claim (Index 4):
The method of  claim 1 , wherein the lanthanum oxide and lutetium oxide is mixed in the weight ratio of 4:1.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 90.0
- Lexical Diversity: 2.29032
- Patent Class: 29.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14218680', '13512755', '11049598', '10378945', '13254860']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8799983522627304
- 35 USC 102 Novelty (BERT): 0.5499161648252755
- Combined Prediction Score: 0.846990133518985
- Mean Citation Score: 236.723218
- Max Citation Score: 413.81924
- Similarity Product: 349.5219753442096

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