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David Chadwell
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Renton, WA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Integrated stowage bin assembly
Patent number
11,519,211
Issue date
Dec 6, 2022
Harper Engineering Company
David Chadwell
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Integrated stowage bin assembly
Patent number
11,352,823
Issue date
Jun 7, 2022
Harper Engineering Company
David Chadwell
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Payload attachment fitting and methods to use the same
Patent number
11,180,258
Issue date
Nov 23, 2021
Harper Engineering Co.
David Chadwell
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Integrated stowage bin assembly
Patent number
10,801,244
Issue date
Oct 13, 2020
Harper Engineering Co.
David Chadwell
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Grant
Integrated stowage bin assembly
Patent number
10,760,315
Issue date
Sep 1, 2020
Harper Engineering Co.
David Chadwell
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Panel assemblies and methods to assemble the same
Patent number
10,597,866
Issue date
Mar 24, 2020
Harper Engineering Co.
David Chadwell
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Panel assemblies and methods to assemble the same
Patent number
10,309,098
Issue date
Jun 4, 2019
Harper Engineering Co.
David Chadwell
E04 - BUILDING
Patents Applications
last 30 patents
Information
Patent Application
INTEGRATED STOWAGE BIN ASSEMBLY
Publication number
20230228141
Publication date
Jul 20, 2023
Harper Engineering Co.
David Chadwell
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Application
BI-FOLD DOOR
Publication number
20230083772
Publication date
Mar 16, 2023
Harper Engineering Co.
David Chadwell
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Application
FLIGHT DECK BARRIER APPARATUS
Publication number
20230047018
Publication date
Feb 16, 2023
Harper Engineering Co.
David Chadwell
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Application
INTEGRATED STOWAGE BIN ASSEMBLY
Publication number
20210372183
Publication date
Dec 2, 2021
Harper Engineering Co.
David Chadwell
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Application
INTEGRATED STOWAGE BIN ASSEMBLY
Publication number
20200399945
Publication date
Dec 24, 2020
Harper Engineering Co.
David Chadwell
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Application
AIRCRAFT HINGE APPARATUS AND RELATED METHODS FOR USE OF THE SAME
Publication number
20200300013
Publication date
Sep 24, 2020
Harper Engineering Co.
David Chadwell
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Application
AIRCRAFT DOOR LATCH APPARATUS AND RELATED METHODS FOR USE OF THE SAME
Publication number
20200300001
Publication date
Sep 24, 2020
Harper Engineering Co.
David Chadwell
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Application
AIRCRAFT HINGE APPARATUS AND RELATED METHODS FOR THE SAME
Publication number
20200255116
Publication date
Aug 13, 2020
Harper Engineering Co.
David Chadwell
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Application
AIRCRAFT FLOORING SYSTEMS AND RELATED METHODS
Publication number
20200086966
Publication date
Mar 19, 2020
Harper Engineering Co.
David Chadwell
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Application
PAYLOAD ATTACHMENT FITTING AND METHODS TO USE THE SAME
Publication number
20190300178
Publication date
Oct 3, 2019
Harper Engineering Co.
David Chadwell
B60 - VEHICLES IN GENERAL
Information
Patent Application
PANEL ASSEMBLIES AND METHODS TO ASSEMBLE THE SAME
Publication number
20190249416
Publication date
Aug 15, 2019
Harper Engineering Co.
David Chadwell
E04 - BUILDING
Information
Patent Application
INTEGRATED STOWAGE BIN ASSEMBLY
Publication number
20190017308
Publication date
Jan 17, 2019
Harper Engineering Co.
David Chadwell
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Application
PANEL ASSEMBLIES AND METHODS TO ASSEMBLE THE SAME
Publication number
20180195269
Publication date
Jul 12, 2018
Harper Engineering Co.
David Chadwell
B64 - AIRCRAFT AVIATION COSMONAUTICS