The US trademark listings, which have the address as Kensington Palace, Palace Green, London, are all described on the site. The Princess’s Shaping Us programme is detailed as: “Development and conducting of promotional campaigns; promoting public awareness in the field of childhood development; advisory, consultancy and information services in relation to the foregoing.”

Prince William’s Earthshot Prize, meanwhile, cites the need for the trademark to create: “Printed matter, namely, books, brochures, magazines and newsletters in the field of nature conservation and protecting the environment; printed matter, namely, calendars, greeting cards and posters; photographs.”

The couple’s Royal Foundation is described as: “Development and conducting of promotional campaigns; advertising services, namely, promoting public awareness of mental health initiatives; all the aforesaid consisting of or relating to charitable activities in the field of mental health.”

The profile goes on to list the need for many items, including posters and printed race numbers. It reads: “Printed matter, namely, books, pamphlets, periodicals, newsletters, magazines, informational brochures, and reports; paper banners and printed posters; all the aforesaid in relation to charitable activities in the field of mental health; printed race numbers.”

Kensington Palace has been contacted for comment.

While no future plans have been laid out, any further expansion of the Prince and Princess’s work stateside would surely come as a delight to the American people, particularly after Prince William was crowned the most popular public figure in the US in 2023.

At the time, he beat out the likes of Ukraine’s President Zelensky, former US President Joe Biden and King Charles.

In recent years, William hosted the 2022 Earthshot Prize Awards in Boston and returned to the country the following year for a two-day visit to New York to announce the 15 finalists of the third awards.

The Prince’s popularity in the US is often remarked upon, with former BBC royal correspondent Jennie Bond telling OK! at the time: “It seems William is on a bit of a charm offensive with the USA and it’s clearly working. I don’t think William is a vindictive sort of person, but it must surely give him a certain quiet satisfaction that he is now so popular on Harry’s ‘turf’.”

The expert went on: “William is quite a strategist – he has a good business head on him – and so if he can turn his popularity into a positive force for boosting his charity funds and helping his various causes, then he will seize it.”