Retiree health benefits, solar power and patent litigation might appear to have little to do with one another, but they’re all driving business growth at Farella Braun + Martel.

Long known for its specializations in renewable energy, bankruptcy and the wine industry, Farella Braun has continued to embrace fresh niche practices. The San Francisco firm, which just celebrated 50 years in business, saw revenues grow substantially in 2011 due to an increase in patent litigation. The firm also harnessed several solar power deals and developed an innovative trust fund to guarantee health benefits to retirees of bankrupt companies in the automotive and steel industries.