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Is it possible to make money from a modification to an existing product if it is your idea?

By Tim Berry Edited by Dan Bova

Opinions expressed by Entrepreneur contributors are their own.

Tim Berry

Entrepreneur, Business Planner and Angel Investor

Tim Berry is the chairman of Eugene, Ore.-Palo Alto Software, which produces business-planning software. He founded Bplans.com and wrote The Plan-As-You-Go Business Plan, published by Entrepreneur Press. Berry is also a co-founder of HavePresence.com, a leader in a local angel-investment group and a judge of international business-plan competitions.

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