Since William Coblentz’s death on Sept. 13, the San Francisco firm that bears his name has remained a powerful fixture in California real estate.

Coblentz, Patch, Duffy & Bass has been involved in the proposed $1 billion new stadium for the San Francisco 49ers football team and in developments along San Francisco’s waterfront that are changing the face of the city. It had a hand in major legal disputes, including the settlement of a class action against Dish Network LLC, and has grabbed a piece of the market helping emerging companies obtain financing.