特とっ許きょ申しん請せい中ちゅう

Meanings

1

noun

patent pending

Used as a label on products or in documentation to indicate that a patent application has been filed but not yet granted.

solicit, invite, ask

中in, inside, middle

特とっ許きょ
Refers to a patent itself, while 特許申請中 describes the pending status of a patent application.
商しょう標ひょう登とう録ろく中ちゅう
Similar label for a trademark application that is still under examination.

Compound of 特許 (patent) + 申請 (application) + 中 (in the process of). The phrase is a direct translation of the English 'patent pending'.