Darrell A. Kulzer

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Denver, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Exercise step using spirally shaped air-cushioning legs
- Patent number 9,011,755
- Issue date Apr 21, 2015
- B & R Plastics, Inc.
- Darrell A. Kulzer
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Exercise step using spirally shaped air-cushioning legs
- Patent number 8,944,979
- Issue date Feb 3, 2015
- B & R Plastics, Inc.
- Darrell A. Kulzer
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Package for use in displaying merchandise for sale
- Patent number 4,729,473
- Issue date Mar 8, 1988
- B & R Plastics, Inc.
- Darrell A. Kulzer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Package and method for use in displaying merchandise for sale
- Patent number 4,634,005
- Issue date Jan 6, 1987
- B & R Plastics, Inc.
- Darrell A. Kulzer
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

Information Patent Application
DUAL SIZE VALVE BASE
- Publication number 20180238031
- Publication date Aug 23, 2018
- B&R Plastics, Inc.
- Darrell A. Kulzer
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
EXERCISE STEP USING SPIRALLY SHAPED AIR-CUSHIONING LEGS
- Publication number 20150068017
- Publication date Mar 12, 2015
- Darrell A. Kulzer
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
EXERCISE STEP USING SPIRALLY SHAPED AIR-CUSHIONING LEGS
- Publication number 20120088642
- Publication date Apr 12, 2012
- Darrell A. Kulzer
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL