On Wednesday, October 31, 2012, BlazeFrame (plaintiff) recorded a suit against California Expanded Metal Products Co (CEMCO) (defendant) for patent infringement in the U.S District Court of Western Washington (case no.2:12-cv-01922).
BlazeFrame, a Washington based company, produces steel framing profiles/parts with intumescent composite materials that retard the spread of fires through structures. CEMCO is a manufacturer of cold-formed steel-framing and metal lath products.
The patents involved in this suit are listed below:
Patent No.
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Issue Date
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Title
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11/15/2011
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08/22/2028
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Head-of-Wall Fireblock Systems and Related Wall Assemblies
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03/20/2012
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04/04/2028
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Head-of-Wall Fireblock
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10/19/2010
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04/04/2028
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Head-of-Wall Fireblock
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The above patents relate to fire retardant head-of-wall assemblies. According to the complaint, the defendant’s accused product FAS Track infringes the above patents. FAS Track as shown in Fig 1 is a header track used in a stud wall assembly. It is a plainly U-shaped top header track, with a web and flanges on opposite sides of the web, and has at least one strip of intumescent material coupled to the header track.
Fig 1
FAS Track

[i]MaxVal offers Patent Assignment Alert service where subscribers receive email alerts when assignments relating to target applications, patents or entities of interest are recorded.
[ii]Expected expiration date. Patent Term Estimator is a free web-based tool that automatically
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