The Bees were forced to play much of the match with only ten men after skipper Ricky Newman was sent off in the first half.
Huddersfield, however, also finished the match a man down after goalkeeper Paul Rachubka was given his marching orders just after the break.
This game was more of a drama than a football match, which must have suited Brentford's new chairman and former BBC director Greg Dyke down to the ground.
Dyke gave a rousing speech before kick-off but it was clear from the offset that neither team needed revving up for this encounter.
Referee Keith Stroud undoubtedly played the starring role, taking his cue in the 17th minute when he dismissed Newman after he kicked Chris Brandon in the head.
The incident sparked a 17-man brawl which Mr Stroud calmed down and then after consulting his assistant, produced a red card from his top pocket.
The Brentford skipper will argue that the decision was harsh, but Brandon, who had been guilty of some late challenges himself, clearly came off second best and was unable to return to the pitch.
Brentford keeper George Bankole then tried his best to join Newman in the dressing room, foolishly lashing out at Tom Clarke. But somehow he managed to escape the referee's eye.
As Huddersfield looked to make their numerical advantage count, Brentford caught them on the break and took the lead.
Owusu had the easiest of tap-ins on 25 minutes when Campbell turned the ball across goal after Rachubka parried Kevin O'Conner's free-kick into his path.
After the restart the numbers were levelled up when Rachubka was dismissed for scything down Campbell.
Brentford's leading scorer was played through by Isaiah Rankin with only the keeper to beat. But the former Manchester United player's challenge was clumsy and he could not argue with Mr Stroud's decision.
The incident sparked Huddersfield to life and they enjoyed their best spell of possession.
But their hopes of pulling off a victory were dashed when Campbell put the result beyond doubt with a spectacular second in the 78th minute.
Campbell struck the ball from 25 yards out and it bobbled under substitute goalkeeper Philip Senior.
The live-wire striker should have had a second at the death, but slammed his shot straight at Senior.