Field Fisher Waterhouse's (FFW) respected IT and IP team was reeling last week after two partners resigned on consecutive days.
Senior IT/IP litigator Mark Lewis resigned for IBB Solicitors one day and respected patent litigator Jonathan Radcliffe quit for Nabarro Nathanson on the following day.
An FFW spokesperson said: "The two resignations are not linked and we wish them both well."
Radcliffe joins Nabarros' IP team after five years at FFW, which he joined from Beachcroft Wansbroughs.
Radcliffe has recent experience in the Court of Appeal and the House of Lords, including on the groundbreaking case of Sabaf v MFI & Ors (2005).
Radcliffe will become the fourth partner in Nabarros' IP department, which is headed by Guy Heath. Radcliffe will complement an existing patent and trademark litigation capability.
Lewis is one of FFW's most senior IT/IP litigators and has recently been involved in one of the firm's biggest-billing disputes, an epic arbitration in the Netherlands. It is understood that he is leaving for lifestyle reasons.
He joins IBB, a 27-partner, Uxbridge-based firm, which achieved a turnover of £11.7m in 2004-05.