PATENT CLAIM ANALYSIS

Application Number: 16042531
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-02
Patent Classification: ["250", "282000"]

Abstract:
RF ion guides are configured as an array of elongate electrodes arranged symmetrically about a central axis, to which RF voltages are applied. The RF electrodes include at least a portion of their length that is semi-transparent to electric fields. Auxiliary electrodes are then provided proximal to the RF electrodes distal to the ion guide axis, such that application of DC voltages to the auxiliary electrodes causes an auxiliary electric field to form between the auxiliary electrodes and the ion guide RF electrodes. A portion of this auxiliary electric field penetrates through the semi-transparent portions of the RF electrodes, such that the potentials within the ion guide are modified. The auxiliary electrode structures and voltages can be configured so that a potential gradient develops along the ion guide axis due to this field penetration, which provides an axial motive force for collision damped ions.

Claim (Index 35):
A method, comprising:\n ionizing a sample to generate ions; providing background gas along at least a portion of a RF ion guide; introducing at least a portion of the ions through an input end of the RF ion guide to collide with background gas in the RF ion guide; providing a DC electric field along an ion guide axis of the RF ion guide that has a non-zero axial component to cause ions that have undergone collisions to move through the RF ion guide toward a ion guide exit end; wherein providing the axial electric field comprises applying a DC voltage to a first electrode of the RF ion guide that surrounds a second electrode of the RF ion guide such that an electric field produced by the first electrode penetrates a central portion of the second electrode before impinging on the ion guide axis to generate a DC electric field between the first and second electrodes, the central portion of the second electrode defines a longitudinal elongated slot, and wherein the RF ion guide produces RF electric fields within a central portion of the first RF ion guide throughout a region between the second electrode and the ion guide axis to radially confine ions; providing a first trapping region proximal to the ion guide exit end, wherein ions are trapped following their passage through the first RF ion guide; releasing trapped ions from the first trapping region; and mass analyzing the released ions.

Metadata:
- Claim Count in Document: 8.0
- Percentile: 95.0
- Lexical Diversity: 1.96154
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14734916', '15445891', '12111484', '11133724', '14631959']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7642578411642209
- 35 USC 102 Novelty (BERT): 0.5988781282526112
- Combined Prediction Score: 0.7477198698730599
- Mean Citation Score: 416.13948
- Max Citation Score: 531.2408
- Similarity Product: 495.07965333004006

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