Whitehall, Pennsylvania
United States
7
2007-12-27
The entities that hold a legal rights for patent applications filed by inventor Walker Mark A.:
Mark A. Walker from Whitehall, US has applied for patents for these inventions. The list has both pending applications and granted patents:
System for controlling a roller shade fabric to a desired linear speed
#2 | 2007-12-27Control system for uniform movement of multiple roller shades
#3 | 2006-06-29System for coupling roller shade tubes
#4 | 2005-08-11System for controlling roller tube rotational speed for constant linear shade speed
#5 | 2005-08-04System for securing a shade fabric to a roller tube
#6 | 2005-04-28System for coupling roller shade tubes
#7 | 2005-01-25Roller shade weighting assembly
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