PATENT CLAIM ANALYSIS

Application Number: 15774630
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["222", "402100"]

Abstract:
A canister for a metered dose inhaler has high and low pressure chambers for a propellant and for an inhalable drug and vaporised propellant. The low pressure chamber has an opening for a metering valve. A pressure regulating valve is between the high and low pressure chambers and provides a flow path from them. A metering valve dispenses a metered dose. The valve includes a metering valve body having a propellant metering chamber with a propellant inlet and a product metering chamber with a product inlet, and a metering valve stem with a dispensing nozzle, a propellant inlet plug and a product inlet plug. The metering valve stem moves to a dispensing position. In the dispensing position, the propellant and product metering chambers are in fluid communication with atmosphere via the dispensing nozzle of the metering valve stem such that a metered dose of product and propellant can be dispensed.

Claim (Index 37):
A metering valve for dispensing a metered dose of product from a canister containing the product and a propellant, the valve including:\n a metering valve body comprising a propellant metering chamber with a propellant inlet and a product metering chamber with a product inlet; and a metering valve stem comprising a propellant channel having an entrance and an exit, a dispensing nozzle formed as a hollow tube having a side port and an axial port, a propellant inlet plug and a product inlet plug, wherein the metering valve stem is movable within the metering valve body to a dispensing position in which: the propellant inlet is sealed by the propellant inlet plug and the product inlet is sealed by the product inlet plug; the propellant channel entrance is located in the propellant metering chamber and the propellant channel exit is located within the product metering chamber such that the propellant metering chamber is in fluid communication with the product metering chamber via the propellant channel, and is in fluid communication with the dispensing nozzle via the product metering chamber; and the dispensing nozzle side port is located within the product metering chamber such that the product metering chamber is in fluid communication with atmosphere via the dispensing nozzle such that a metered dose of product and propellant can be dispensed from the canister via the product metering chamber.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 2.62295
- Patent Class: 222.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10312027', '10554820', '10554790', '10554818', '14181219']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7841572036487445
- 35 USC 102 Novelty (BERT): 0.4997051324440762
- Combined Prediction Score: 0.7557119965282777
- Mean Citation Score: 259.50626600000004
- Max Citation Score: 297.68805
- Similarity Product: 240.22529030081031

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