San Diego-based comedy writer and blogger Robert Kaseberg sued Conan O'Brien, TBS and other members of his team for allegedly violating copyright on four of his jokes. Kaseberg had Conan O'Brien sued after the comedian reportedly took his jokes from Twitter.

The lawsuit was filed by Kaseberg on July 22 in a California federal court. Kaseberg said he had Conan O'Brien sued after the comedian used his jokes about Caitlyn Jenner, the Washington Monument, Delta Airlines and Tom Brady during his monologue at his late-night show. Kaseberg claimed all four jokes were posted on his blog and Twitter account prior to Conan's shows.

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The first joke was published January 14, 2015, on his personal blog and Twitter account, according to The New York Daily News.

"A Delta flight this week took off from Cleveland to New York with just two passengers. And they fought over control of the armrest the entire flight," the joke read.

On the same day, during the O'Brien show, the comedian made a similar joke: "On Monday, a Delta flight from Cleveland to New York took off with just two passengers. Yet somehow, they spent the whole flight fighting over the armrest."

The second joke written by Kaseberg was allegedly used by the comedian in February.

"Tom Brady said he wants to give his MVP truck to the man who won the game for the Patriots. So, enjoy that truck, Pete Carroll."

The next night, the joke ended up again in The Conan O'Brien Show.

Two other jokes written by Kaseberg were also allegedly stolen by Conan.

One, written on June 9, was about Caitlyn Jenner: "Three streets named after Bruce Jenner might have to change their names. And one could go from a Cul-de-Sac to a Cul-de-Sackless."

Another joke that had Conan O'Brien sued was about the Washington Monument: "The Washington Monument is ten inches shorter than previously thought . . . You know the winter has been cold when a monument suffers from shrinkage."

On his late night show, O'Brien said, "Surveyors announced that the Washington Monument is 10 inches shorter than what's been recorded. Of course, the monument is blaming the shrinkage on the cold weather."

Production Company Conaco, which licenses Conan's show, released a brief statement in response to the copyright issue.

"We at Conaco firmly believe there is no merit to this lawsuit," Conaco said.

Whether or not the accusations are true, it is up to a judge or jury to decide, according to The Inquisitr.

There are some who believe Kaseberg has the right to sue O'Brien, and there are also skeptics, including Twitter user Chris Fortson.

Fortson pointed out that millions of tweets with jokes are posted each day, and another person may have the same idea as anyone at some point in time.

@AndyRichter I'm sure Robert Kaseberg was the only person to think of these topical jokes at the time of the events. #howmanypeopleontwitter

— chris fortson (@deadchris80) July 27, 2015

The copyright lawsuit comes in the wake of issues of joke theft on Twitter. This past week, a few jokes on the social media site were reportedly removed at the request of a freelance writer. Numerous articles speculated that the website is taking joke theft seriously, according to The Hollywood Reporter.

If an Internet service provider like Twitter expeditiously removes a material accused of violating copyright services, the accuser reportedly gains an affirmative defense against copyright liability. Stolen tweets used for broadcast television requires a different legal process, which is probably why Kaseberg is demanding hundreds of thousands of dollars for actual and statutory damages.

Here is Kaseberg's full complaint.

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