Individual holder
JOHANSON WALTER A
3 granted patents·51 citations·filing 1980–2010
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0182US6840645B2Light tube system for distributing sunlight or artificial light singly or in combinationJOHANSON WALTER A·Filed 2001·Granted Jan 11, 2005·43 cites·26 claims
- 0261USD266534SGreenhouseJOHANSON WALTER A·Filed 1980·Granted Oct 12, 1982·8 cites·1 claims
- 0347US8998472B2Liquid filled light guide containing voids within the wallsJOHANSON WALTER A·Filed 2010·Granted Apr 7, 2015·0 cites·6 claims
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