The lawsuits are a result of the potential loss of more than 2,000 eggs and embryos at UH's Fertility Center two weekends ago.
The spokesman, Tom Becker, confirmed a Washington Post report of the March 4 incident.
The clinic has reported the incident to the College of American Pathologists, which regulates labs, and the overseers of California's tissue banks, Herbert said.
The March 4 incident, which was made public March 11, follows a similar malfunction that occurred the same weekend at a fertility clinic at Beachwood, Ohio-based University Hospitals Ahuja Medical Center.
The Post reported that the San Francisco clinic notified about 400 patients who had all of their eggs or embryos stored in the affected storage tank and 100 who had some stored in the tank.
Other attorneys in the Greater Cleveland area have also told News 5 they will be filing lawsuits for individual clients on Monday.
CNN has attempted to contact Herbert for comment.
The hospital issued an apology after the unexplained malfunction caused temperatures inside the storage tank to rise.
Herbert told the Post his discussions with patients were emotional.
In its statement, Pacific Fertility said an independent investigation is in progress and apologized for the incident.
"What is most disturbing to me is that everyone I talked to has been informed by UH that their embryos are not viable, they've been destroyed, different from what has been out there publicly which has been that they've been compromised, we don't know". In addition, we have completed a physical inspection of all of the lab equipment and have also thoroughly reviewed all cryo-preservation protocols with staff.
In a statement, the clinic acknowledged there was viable tissue in the affected tank, adding "we are truly sorry this happened, and for the anxiety that this will surely cause".
The first class action lawsuit has been filed against University Hospitals following a refrigerator malfunction that has left the viability of 2,000 eggs and embryos in question. They amounted to an estimated 10 to 15 percent of the total stored at the facility, according to Pacific Fertility Clinic spokesperson Alden Romney.
According to the clinic's website, its fees for egg freezing are $8,345 for the initial cycle and $6,995 for each subsequent round.
The firm has previously handled multiple cases involving eggs and embryos damaged or lost during the storage or transfer process. With two occurring nearly simultaneously, he said, further investigation is necessary. "We are committed to getting answers and working with patients individually to address their concerns". "We want to make sure that these devastating tragedies never happen again".
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