PALO ALTO — Adventure camera startup GoPro Inc. unveiled plans Monday for a $100 million initial public offering. It turned to Fenwick & West for counsel. The underwriters tapped Wilson Sonsini Goodrich & Rosati for legal advice.

GoPro was founded more than a decade ago by Nick Woodman, an entrepreneur who, after the death of an earlier startup, took a surfing trip to Australia and Indonesia, where he honed his idea for a wearable camera. Woodman has expressed an appreciation for intellectual property protections, noting that he filed the company’s first patent himself. Today, GoPro has 42 U.S.-issued patents and 68 applications pending and 15 corresponding foreign-issued patents and 12 applications pending.