The Devils also signed Sean Brown as a free agent during the summer.
The Devils signed Thomas, the former Islander, to a multiyear deal as a compliment to his work ethic, competitiveness and consistency.
The Devils signed three prospects yesterday, including the college player of the year, but there continued to be little movement in signing several of the team's free agents.
The Devils signed Robinson to a two-year contract with an option for more.
The Devils signed Madden as a free agent in 1997.
Although sidelined, the Devils signed him to a rookie contract in September 1999.
The Devils have not signed a free agent.
The Devils signed Fetisov to a one-year contract for $300,000 last month, but could not have used him before Feb. 20 unless he cleared waivers.
If the negotiations become bitter, there is speculation the Devils would sign Stevens and then trade him.
The Devils signed him looking for defensive depth in Lowell.