September, 9th, 2019

Categories: Blog, News Tags: patent, PTAB, USPTO, whipgroup

WHIPgroup secured a favorable decision by the Patent Trial and Appeal Board (PTAB), reversing all rejections of an application directed to a hybrid transformer core.  The Examiner had rejected the independent claims as allegedly being obvious over the combination of three references.  On Appeal, WHIPgroup successfully argued that a prior art transformer core cannot be modified to have yokes of amorphous steel and limbs of grain oriented steel because it would detract from the prior art’s purpose of constructing the core using identical constituents of the same magnetic powder material.  The PTAB was also convinced that the Examiner’s obviousness reasons lacked rational underpinning in light of the explicit teachings of the prior art.  Issuance of a patent containing all pending claims is expected in due course.