PATENT CLAIM ANALYSIS

Application Number: 15903900
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["166", "379000"]

Abstract:
An isolation tool and related methods for protecting a wellhead to which a casing string is operably coupled. In an exemplary embodiment, the isolation tool includes an anchor assembly adapted to be connected to the wellhead; a mandrel adapted to sealingly engage an interior portion of at least one of the wellhead and the casing string; and a lock assembly including a mandrel head connected to the mandrel and adapted to be displaced, relative to the anchor assembly and the wellhead, to sealingly engage the mandrel with the interior portion; a landing sleeve connected to the mandrel head and adapted to be displaced, relative to the mandrel head, the mandrel, the anchor assembly, and the wellhead, to engage the anchor assembly; and a connector adapted to secure the landing sleeve to the anchor assembly when the mandrel sealingly engages the interior portion and the landing sleeve engages the anchor assembly. In an alternative embodiment, the landing sleeve may be unnecessary, as the range of adjustment for the mandrel may be provided by the combination of a lockdown wing which threadably engages the anchor assembly and a weight holding lug which threadably engages the mandrel head.

Claim (Index 4):
A method of protecting a wellhead to which a casing string is operably coupled, the method comprising:\n connecting to a wellhead an anchor assembly comprising a support member; positioning within the wellhead a mandrel comprising a packoff assembly, wherein the mandrel is connected to, and adapted to move axially together with, a mandrel head; threadably engaging a weight holding lug with an externally threaded portion of said mandrel head; axially displacing the mandrel and mandrel head relative to the anchor assembly and wellhead, such that the packoff assembly is positioned at a desired location within at least one of the wellhead and the casing string; threadably engaging a lockdown sleeve with an externally threaded portion of said support member, such that said mandrel and mandrel head are locked in the desired position; rotating said weight holding lug such that the lug advances axially in a downward direction until a lower annular surface of the weight holding lug abuts an upper annular surface of said lockdown wing.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 88.0
- Lexical Diversity: 3.16418
- Patent Class: 166.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15238019', '14859665', '14859702', '15128205', '12396597']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8223951318150312
- 35 USC 102 Novelty (BERT): 0.5574463402608826
- Combined Prediction Score: 0.7959002526596164
- Mean Citation Score: 371.817642
- Max Citation Score: 458.04575
- Similarity Product: 416.22911671119925

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