Pratt & Whitney Canada Corp Patent Portfolio Statistics

Pratt & Whitney Canada Corp.

Profile Summary

This article summarizes the perfomance of the assignee in the recent years. The overall statistics for this portfolio help to analyze the areas where the assignee is performing well. The filing trend, perfomance across the tech centers and the perfomance of the recent applications has been mentioned below. All the stats are calculated based on the perfomance in USPTO.

How does the overall patent portfolio of Pratt & Whitney Canada Corp. look like?

Total Applications: 2,313
Granted Patents: 1,763
Grant Index 90.09 %
Abandoned/Rejected Applications: 194 (9.91%)
In-Process Applications: 346
Average Grant Time: 3.01 Years
Average Office Actions: 1.59

Which Technology Area Pratt & Whitney Canada Corp. is filing most patents in? (Last 10 years)

Art Unit Definition Total Applications
3741 Thermal & Combustion Technology, Motive & Fluid Power Systems 522
3745 Thermal & Combustion Technology, Motive & Fluid Power Systems 520
3746 Thermal & Combustion Technology, Motive & Fluid Power Systems 193
3748 Thermal & Combustion Technology, Motive & Fluid Power Systems 94
3726 Manufacturing Devices & Processes, Machine Tools & Hand Tools 80

How many patents are Pratt & Whitney Canada Corp. filing every year?

Year Total Applications
2022 0*
2021 36*
2020 180
2019 342
2018 171

*The drop in the number of applications filed in last two years compared to previous years is because applications can take up to 18 months to get published

Recently filed patent applications of Pratt & Whitney Canada Corp. in USPTO?

Publication number: US20220003354A1
Application number: 17/479,279

Abstract:
A gas turbine engine includes a casing including a plurality of interconnected casing segments defining an outer surface of the casing. One of the casing segments is a gearbox segment enclosing a gearbox and having a gearbox flange extending radially outwardly from the outer surface of the casing. The engine includes a bearing housing enclosing at least one bearing and having an annular body with an inner segment disposed within the casing. The annular body having an extension segment extending radially outwardly from the inner segment to a bearing housing flange disposed radially-outwardly of the outer surface of the casing. The bearing housing flange is engageable with the gearbox flange to removably mount the gearbox segment to the bearing housing.

Publication date: 2022-01-06
Applicant: Pratt & Whitney Canada Corp.
Inventors: A Ian Macfarlane


Publication number: US20210388774A1
Application number: 17/412,698

Abstract:
A system has: a combustor; a plenum surrounding the combustor; a transfer tube having an inlet fluidly connected to the plenum and at least two outlets, a first flow passageway defined between the inlet and a first outlet, a second flow passageway defined between the inlet and a second outlet, the second flow passageway connected to a discharge region outside of the plenum; a flow valve disposed within the second flow passageway and operable between an open position and a closed position, in the open position the flow valve fluidly connects the plenum with the discharge region, in the closed position the flow valve blocking fluid communication between the plenum and the discharge region; and a controller communicatively coupled to the flow valve to control operation thereof by: causing the flow valve to open for a time period; and subsequent to the time period, causing the flow valve to close.

Publication date: 2021-12-16
Applicant: Pratt & Whitney Canada Corp.
Inventors: Joshi Ninad


Publication number: US20210381438A1
Application number: 17/408,905

Abstract:
There is described a method and system for in-flight start of an engine. The method comprises rotating a propeller; generating electrical power at an electric generator embedded inside a propeller hub from rotation of the propeller; transmitting the electrical power from the electric generator to an engine starter mounted on a core of the engine via an electric power link; and driving the engine with the engine starter to a sufficient speed while providing fuel to a combustor to light the engine to achieve self-sustaining operation of the engine.

Publication date: 2021-12-09
Applicant: Pratt & Whitney Canada Corp.
Inventors: H Perkinson Robert


How are Pratt & Whitney Canada Corp.’s applications performing in USPTO?

Application Number Title Status Art Unit Examiner
17/479,279 Gas Turbine Engine Casing Arrangement Docketed New Case – Ready for Examination OPAP Central, Docket
17/412,698 Method And System For Operating A Gas Turbine Engine Docketed New Case – Ready for Examination OPAP Central, Docket
17/408,905 In Flight Restart System And Method For Free Turbine Engine Docketed New Case – Ready for Examination OPAP Central, Docket
17/407,525 Compressor Diffuser With Plasma Actuators Docketed New Case – Ready for Examination OPAP Central, Docket
17/406,216 Reverse Flow Engine Architecture Docketed New Case – Ready for Examination OPAP Central, Docket