Seattle, WA, United States of America

Sky Castle Toys LLC


USPTO Granted Patents = 2

Trademarks = 12

Forward Citations = 1

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4 inventors (with patents filed for the assignee):

goldMedal Martin Levin Nelson (1 out of 1 patent)

silverMedal Webb T Nelson (1 out of 61 patents)

bronzeMedal Kevin C Williams (1 out of 50 patents)

4 Steven E Walterscheid (1 out of 1 patent)


2 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

2 Patents

#640 in Seattle, WA

#2,260 in Washington

#92,598 in US

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Seattle, WA, United States of America
Forward Citations = 1

4 inventors:

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