When Garett Fortune’s brother Gregg was found to have cancer in early 2013, it was so advanced that all he could do was to try to live out the remainder of his life in as little pain and discomfort as possible. That meant taking about 30 pills a day, Mr. Fortune said — until his brother tried marijuana.

“I saw him go from 30 pills a day to almost zero,” he said. “It helped his appetite and the nausea. He had a way better quality of life at the end than he would have without the cannabis. It made me a proponent of the industry.”

It also gave Mr. Fortune the idea for a business. With more states legalizing marijuana for medical uses — and, in Colorado and Washington, recreational ones — Mr. Fortune identified one of the industry’s challenges: packaging. The old standby, the resealable plastic bag, was not sufficiently effective, especially for a regulated industry, and Mr. Fortune already owned OdorNo, a company that made odor-proof bags for human and animal waste.

Read more: Start-Ups Seize Marijuana Opportunities as Big Companies Hold Back | New York Times