Ashok Mahajan, 55, showered a barrister, solicitor and pupil with the contents of a bottle of hydrochloric acid after his race discrimination claim was thrown out.
Trainee barrister Lucy Colter suffered a burned eye as corrosive fluid dribbled down her face and melted through her tights.
Jacqui Smith sued over shock jock accusationsFormer accountant Mahajan had a decade-long history of courtroom outbursts including an incident where he threw a shoe at one barrister and threatened to shoot him.
Mahajan was handed an indefinite period of imprisonment for the public protection after reports indicated he posed a high risk of serious harm to members of the legal profession.
He was convicted of attempting to cause grievous bodily harm with intent following a three week trial earlier this year.
Judge Nicholas Lorraine-Smith branded Mahajan the most difficult defendant he had ever dealt with.
Sentencing at Southwark Crown Court the judge told him: "I have had extensive dealings with you, Mr Mahajan, over the last six months, and I have no doubt whatsoever that there is a very significant risk of serious injury being caused by you committing further specified offences.
"I don't consider this offence warrants a life sentence, but the sort of revenge that you tried to take last October and the increasing intensity of your obsessional hatred of lawyers and now others who have to deal with you in a professionally persuades me that I must pass a sentence of imprisonment for the public protection, which means that you will not be released until it is safe to do so.
"This was an attempt to cause grievous bodily harm to members of the legal profession, simply because they were carrying out their professional duty."
The judge ordered that Mahajan will not be assessed for parole for a minimum of five years the equivalent of a 10 year determinate sentence.