lit a candle 4h ago62.
Their story
Dan Brown was a Chicago-raised inventor, entrepreneur, and Northwestern University clinical professor best known for creating the Bionic Wrench and for teaching engineers how design and patents create value. He died suddenly on September 15, 2026, at age 70. He is not Dan Brown the novelist; headlines that briefly blurred…
Dan Brown was a Chicago-raised inventor, entrepreneur, and Northwestern University clinical professor best known for creating the Bionic Wrench and for teaching engineers how design and patents create value. He died suddenly on September 15, 2026, at age 70. He is not Dan Brown the novelist; headlines that briefly blurred the two names referred to this Northwestern McCormick / Segal Design Institute educator and founder of LoggerHead Tools.
Brown learned to fix machines young and later practiced product commercialization for three decades, first in industry and then as a consultant and entrepreneur. He earned a bachelor's degree from St. Xavier University in Chicago, a master's in product design and development management from Northwestern, and a late-career Ph.D. from Coventry University. He held dozens of U.S. utility patents (contemporaries often cited a portfolio above 30, with tributes after his death describing a lifetime total exceeding 100 patent documents) and won multiple international design awards.
The Bionic Wrench, inspired when he watched his son Dan Jr. struggle with a lawnmower repair, combined a pliers-like squeeze with wrench grip through a shutter-style ring of steel teeth. Brown founded LoggerHead Tools in 2005, insisted on U.S. manufacturing, and saw the tool named a Popular Mechanics Product of the Year. A bitter dispute with Sears over a competing tool led to years of litigation; a jury award was later overturned, a fight Brown used as a teaching case about how inventors can win on paper and still lose in practice.
At Northwestern's Segal Design Institute he taught Differentiation by Design and intellectual property courses, preparing students to file their own patents. From 2020 to 2025 he served on the U.S. Patent and Trademark Office's Patent Public Advisory Committee. Colleagues remembered a resonant speaking voice, a blues-loving fisherman who preferred Canada "as far north as the road will take me," and a father proud of inventor son Dan Jr. and daughter Jennifer.
Visitation was set for September 18, 2026, at N.H. Scott and Hanekamp Funeral Home in Northbrook, with a celebration of life on September 19 at Alice Millar Chapel. An exact birth date has not been published in the memorials used here, so none is asserted.
Biography adapted from IPWatchdog in memoriam by Bruce Berman (Sept 17, 2026); Northwestern Segal Design Institute faculty profile; McCormick School of Engineering; LoggerHead Tools history; ABC News and inventor podcast ap.
In their own words
“You figured it out.”
Brown describing early machine repairs done without money or manuals, recalled by Bruce Berman
“The best prescription for a great society is a good job.”
Dan Brown, recalled in IPWatchdog in memoriam
Photos
2by People Forever
Dan Brown, inventor and Northwestern clinical professor
by People Forever
That sounds exactly like him, always redirecting the credit.