PATENT CLAIM ANALYSIS

Application Number: 15943528
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["428", "592000"]

Abstract:
Embodiments of the present disclosure are directed to coiled steel tubes and methods of manufacturing coiled steel tubes. In some embodiments, the final microstructures of the coiled steel tubes across all base metal regions, weld joints, and heat affected zones can be homogeneous. Further, the final microstructure of the coiled steel tube can be a mixture of tempered martensite and bainite.

Claim (Index 23):
A coiled steel tube having improved yield strength and fatigue life at weld joints of the coiled steel tube, the coiled steel tube comprising:\n a plurality of strips welded together end to end by a bias weld to form a plurality of bias welded strips and formed into a coiled steel tube, each of the plurality of bias welded strips having base metal regions, bias weld joints, and heat affected zones surrounding the bias weld joints; wherein the coiled steel tube has a final microstructure formed from a full body heat treatment applied to the coiled steel tube; wherein the final microstructure of the coiled steel tube comprises more than 90 volume % tempered martensite and 0 volume % to less than about 10 volume % bainite in the base metal regions, the bias weld joints, and the heat affected zones; wherein the final microstructure across all base metal regions, bias weld joints, and heat affected zones is homogeneous; wherein the hardness is substantially uniform along substantially all of the length of the coiled steel tube that is adapted to be inserted into a wellbore; and wherein the yield strength following manufacture of the coiled steel tube is at least about 80 ksi.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 91.0
- Lexical Diversity: 1.61905
- Patent Class: 428.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15665054', '14190886', '14872490', '13229517', '14248116']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.9123823002668676
- 35 USC 102 Novelty (BERT): 0.7365873474799756
- Combined Prediction Score: 0.8948028049881785
- Mean Citation Score: 487.50686400000006
- Max Citation Score: 802.4181
- Similarity Product: 798.2040363333642

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

Dataset: test