Philadelphia law firm Cozen O'Connor has been sued by a former partner who alleges that she was not given the same leeway regarding political activities as male employees. Patricia Biswanger claims in her sex discrimination and retaliation suit that she was fired from her position as a non-equity partner in September 2005, less than a month after she filed a gender discrimination complaint with the firm's human resources department.

The suit, filed Wednesday in U.S. District Court in Philadelphia, charges that her political activities in Haverford, Pa., caused Cozen O'Connor to apply a double standard that prohibited her from using any firm resources such as phones and email for those activities. She said the firm placed no restrictions on male lawyers' political activities.

The suit says that instead of investigating the complaint, the firm instead tried to prove that she violated its policy about using firm resources for political purposes, a charge that she denies.

The suit was filed by attorneys Michael J. Salmanson, Scott B. Goldshaw and Katie R. Eyer of Philadelphia's Salmanson Goldshaw and names Cozen O'Connor, firm founders Stephen Cozen and Patrick O'Connor and partner Kevin Berry as defendants. Cozen O'Connor's lawyer, Abraham Reich of Fox Rothschild, said the firm has always provided the same opportunities regardless of gender and that the investigation into Biswanger's complaint was "fair and objective." He said the firm looks forward to refuting the charges in court.

Biswanger, an employment litigator, has worked at Rubin Fortunato & Harbison of Wayne, Pa., since December 2005.