Ralph-Christoffersen-Obituary

Ralph "Chris" Christoffersen

Boulder, Colorado

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DIED
September 20, 2025
LOCATION
Boulder, Colorado

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Ralph "Chris" Christoffersen, 87, of Boulder, Colorado, passed away on September 20, 2025. Chris lived an extraordinary life as a family man, academic, university president, biotechnology CEO, and venture capitalist.Chris was born in Elgin, IL, and grew up in Chicago with his parents, Mary and...

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Sending my prayers and sympathies to Barbara and your entire family. Chris was such a nice man and I had the pleasure of working at RPI and getting to know him. I remember you Barbara! As you recall, RPI was a small company but it was also a big family. You will be missed Chris but your legacy will continue to shine on us all.

Sending my condolences and love to Barbara and her family. I had the pleasure of being Chris's administrative assistant for 6 years when he was at The Upjohn Company in Kalamazoo. He was an awesome 'boss' and we made a great team. His laughter filled the room and was contagious. I was so glad to be able to type up the manuscript for his Quantum Mechanics book. I didn't understand any of the terminology, just typed what he wrote. He was so proud when that book was published. He encouraged me...