Pasquale "Pat" Octavious Pistilli

November 3rd, 1931July 15th, 2020

Pasquale (Pat) Octavious Pistilli of Superior, died at home Wednesday, July 15th, shortly after his diagnosis with pancreatic cancer. He was surrounded by the love of his family. Before he took his last breath, just as he no doubt greeted his dearly departed wife, he blessed us with one more mischievous and satisfied smile, as if to acknowledge his legend would live on.

Pat was born November 3rd, 1931, in Newark, NJ to Julia Cicenia and Angelo Pistilli, both who preceded him in death. Pat met and married his wife of 62 years, Marie, in NY before moving to NJ where they were blessed with three daughters. In 1968, Pat was enticed by a promotion to move out West, and his family station-wagoned into the Boulder Valley where he and most of his family have lived ever since.

Pat was a pioneer, visionary and founder of the electronic design automation (EDA) industry - the industry that develops the software programs needed to design and test modern computer chips. As a young engineer at Bell Labs in NJ, in 1964, he invited his fledgling industry peers to a workshop he called the Society to Help Avoid Redundant Effort (SHARE) Design Automation Workshop. This conference evolved into the Deisgn Automation Conference (DAC), now in its 57th year.

In 1984, Pat and Marie founded MP Associates, a conference management company. For 16 years, under his direction, with his beloved wife by his side, Pat and Marie grew DAC into one of the largest trade shows in the country. In 2010, Pat was awarded EDA's prestigious Kauffman Award - dubbed "The Nobel Prize of the EDA Industry" - for his contribution to the industry. Pat began his talk crediting his wife, Marie, for much of his success.

Marie and Pat were also avid supporters of CU Athletics through scholarships, mentoring and cheering on the Buffs at countless events. They maintained their relationships with many of their scholarship recipients throughout their lifetimes.

Pat was a larger-than-life character whose epic stories, some true, will live on in our hearts and laughter. At 88, he was still pulling aside his grandson's and their friends to offer tips on how to dress for success with the ladies. His greatest gift was his passion to bring people together for good work, followed by a good party. He was endlessly proud of his daughters, who have carried on his traditions by building strong families, strong communities and strong celebrations of life. He will be dearly missed.

Pat is survived by his sister, Agnes Errico of Manahawkin, NJ; daughters, Regina of Salt Lake City, Juliette (Kevin) Lepine of Superior, and Trish (Lee) Wood of Boulder; five grandchildren, Andre (Brooke) Lepine, Anthony (Maggie) Lepine, Matthew Wood, Maria Lepine, and Christian Wood; and one great grandchild, Dominic Lepine.


Due to COVID restrictions, Mass and Christian Burial, for immediate family only, will be officiated by Rev. Peter Musset, CSP at St. Thomas Aquinas Catholic Church on Saturday, July 25th at 10am. To join us at Pat's funeral mass via ZOOM, please write to [email protected]

Inurnment will take place immediately following Mass at Green Mountain Cemetery, also for immediate family only.

In lieu of flowers, donations can be made to TRU Community Care Hospice of Boulder County at


Green Mountain Cemetery, Boulder, CO | Map




St. Thomas Aquinas Catholic Church | Map


I’ve never known better people than Pat & Marie Pistilli. Their kindness and generosity is a shining example of how to live life to the fullest. Their relationship is a testament to hard work & commitment professionally & in one’s family life. If there were more people like Pat & Marie then the world would be a much better place.
Pat and Marie were the very best neighbors and dear friends and will be greatly missed. They were extremely generous and caring to so many!
Our love,thoughts and prayers to the entire family. Pat and Marie were the most wonderful amazing couple. They always talked to me about my Italian Heritage and their trips to Italy. CU was a great place to find them at all the games for football and basketball. We shared a lot of visiting at the away CU football games. They have the greatest and closest family. When we see any of them they are all so happy and very friendly. I could go on forever about what a wonderful couple Pat and Marie were. So sorry we cannot see you in person and share some HUGS. Love to all Rosie and Jim Gilbert
I didn't know him well, but I do know that he was smart, accomplished, funny, kind, generous, and a great party host and storyteller. He loved his daughters and his grandchildren unconditionally. I will miss seeing him, and wish I'd had the time to get to know him better. May your passing be easy, Pat, and may your new journey be enlightening and joyful. You will be missed.