Shaquille O’Neal may be the one getting sued in Florida for harassment and in California for divorce but he’s on the offensive in Nevada courts this week. Shaq filed a lawsuit in Las Vegas, claiming a businessman registered a trademark for the word “Shaqtus”, a nickname the NBA star picked up while playing for the Phoenix Suns a while back.

In the lawsuit, actually filed by a company run by Shaq, the basketball star claims the businessman tried to shut down Shaq’s hilarious ESPN commercial, in which he goes to the desert, finds the Shaqtus, and refuses to let anyone else touch it. ESPN ignored the man’s demands but Shaq has now taken matters into his own hands.

But according to the court papers, the defendant argues that Shaq consented to his use of the Shaqtus because Shaq once took a photo with a guy and autographed a shirt for him. Without knowing more about the legal claims and requirements for trademark infringement and squatting, this seems like an interesting case. But the guy sounds a little kooky.

Gloria Allred’s newest client, Vanessa Lopez, filed suit against NBA superstar Shaquille O’Neal in Orlando today. In her civil suit, she alleges assault, intentional infliction of emotional distress, invasion of privacy, conversion and a violation of state racketeering laws. She is represented by no fewer than three different law firms – one from L.A. (Allred’s), one from Miami and one from Orlando.

In the court documents, Lopez alleges that she and Shaq have had an intimate relationship since 2004, though they have known each other longer than that. She claims that Shaq told her that he wanted to have a child with her repeatedly during their relationship. In September of 2009, when Lopez told Shaq that her period was late though, he allegedly reacted negatively and accused her of sleeping with someone else.

Lopez alleges that she was upset by his response and, even after he apologized, she asked Shaq to leave her alone – even threatening to tell his wife if he didn’t. She claims that, within minutes of this threat, she was contacted by Shaq’s sisters who left her threatening messages. Her petition takes pains to point out that Shaq’s sisters are 6’6″ and 6’8″ tall.

She says that Shaq flooded her phone with texts and messages over October and November, forcing her to hire an attorney to send him a cease and desist letter. She claims that he ignored the attorney’s letter and continued to harass her through December.

Other allegations in the lawsuit include claims that Shaq hacked her mobile phone, intercepted her messages and sent an associate by plane from California to threaten her.

Gloria Allred, attorney to just about every media whore ever created, announced today that Vanessa Lopez is filing a lawsuit against Shaquille O’Neal in Florida. Lopez claims she was in a relationship with Shaq for five years and that he repeatedly harassed her when she tried to break it off.

Lopez says she “fears that someone is after her … I want to feel safe again.”

Back in 2007, Lopez reported to Lake Mary, Florida police that she was being harassed by the brother of another basketball player and former boyfriend, J.J. Redick. Police indicated that David Redick called Lopez and said he would leave her alone “when she leaves J.J. alone.”

Back in 2006, then-Boston Celtics player Delonte West called hotel security on Lopez, claiming she refused to leave his Orlando hotel room. Police were called to the room — where Lopez, according to the police report, then accused West of making unwanted sexual advances toward her.

West acknowledged that he had slept with Lopez in the past — but claimed he never hit on her that night. West said Lopez tried to seduce him — but he rejected her because he had another woman coming over. Police ultimately removed Lopez from the premises.

In 2007, Lopez reportedly had a one-night stand with another NBA star, Kenyon Martin. She then allegedly rifled through his wallet and used his credit card to purchase several thousands of dollars of clothing without Martin’s permission.

Shaq is in the midst of a divorce. Shocking.