RKK, Limited

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Bellevue, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for controlling the flow of crude oil from the...
- Patent number 5,146,987
- Issue date Sep 15, 1992
- RKK, Ltd.
- Ronald K. Krieg
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for containment of hazardous material migratio...
- Patent number 5,050,386
- Issue date Sep 24, 1991
- RKK, Limited
- Ronald K. Krieg
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
86950603 - EMAAN
- Serial number 86950603
- Filing date Mar 23, 2016
- RKK Inc
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74321598 - CRYOCELL
- Serial number 74321598
- Registration number 1836406
- Filing date Oct 13, 1992
- RKK, Ltd.
- 42 - Scientific and technological services and research and design relating thereto