Chad Kramer

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Sioux Falls, SD, US

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Patents Grantslast 30 patents

Information Patent Grant
Automatic window sash interlock
- Patent number 11,879,281
- Issue date Jan 23, 2024
- AMESBURY GROUP, INC.
- Tyler Welbig
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Window sash lock and tilt mechanism
- Patent number 11,692,380
- Issue date Jul 4, 2023
- AMESBURY GROUP, INC.
- Allen Rickenbaugh
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Granular material storage capacity increasing device and system
- Patent number 8,959,846
- Issue date Feb 24, 2015
- Keith Polzin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Granular material storage capacity increasing device and system
- Patent number 8,850,758
- Issue date Oct 7, 2014
- Chris A. Nelson
- E04 - BUILDING
Information Patent Grant
Granular material storage capacity increasing device and system
- Patent number 8,739,479
- Issue date Jun 3, 2014
- Chris A. Nelson
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
AUTOMATIC WINDOW SASH INTERLOCK
- Publication number 20210156181
- Publication date May 27, 2021
- Amesbury Group, Inc.
- Tyler Welbig
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
WINDOW SASH LOCK AND TILT MECHANISM
- Publication number 20210156182
- Publication date May 27, 2021
- Amesbury Group, Inc.
- Allen Rickenbaugh
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
GRANULAR MATERIAL STORAGE CAPACITY INCREASING DEVICE AND SYSTEM
- Publication number 20130291458
- Publication date Nov 7, 2013
- Keith Polzin
- E04 - BUILDING