The Chinese government has granted Ivanka Trump's company preliminary approval for another five trademarks this month, as her father's administration pushes ahead on trade negotiations with China.
Four trademarks, including child care centers, sunglasses and wedding dresses, were approved on Sunday. A fifth, covering brokerage, charitable fundraising and art valuation services, was approved on January 6, according to online trademark office records.
The applications were filed in 2016 and 2017. If no one objects, they will be finalised after 90 days.
Ivanka Trump's expanding intellectual property holdings have long raised ethical concerns, particularly in China, where the courts and bureaucracy tend to reflect the will of the ruling Communist Party.
Ivanka Trump's lawyers in China did not respond immediately to a request for comment.
Critics argue that by asking a foreign government for valuable intellectual property rights, White House officials could open themselves to pressure in government negotiations. There is also concern that the family's global trademark portfolio would open the way for lucrative business opportunities once Donald Trump leaves office.
Ivanka Trump closed her fashion brand in July. Her representatives assert that trademark filings are a normal business practice and are needed to protect her name from copycats seeking to capitalize on her fame.
Companies apply for trademarks for a range of reasons. They can be signs of corporate ambition, but many also are filed defensively, particularly in China, where trademark squatting is rampant.
China has said it treats all trademark applications equally under the law.