[7] At the time she was influenced by Serge Poliakoff of the École de Paris, but later found her own unique genre while surrounded by the pop art movement in New York.

Kogelnik was close to another abstract expressionist, the American artist Sam Francis, and spent time with him in 1961 in New York and Santa Monica, California.

Kogelnik then moved to New York in 1962 where she joined a close-knit group of artists that included Roy Lichtenstein, Claes Oldenburg, Andy Warhol, Larry Rivers, Tom Wesselmann, Joan Mitchell, Robert Rauschenberg and Jasper Johns, among others.

That same year, Kogelnik married radiation oncologist Dr. George Schwarz in London, giving birth to her son Mono in 1967, returning to New York shortly thereafter.

[8] In 1969, Kogelnik created a Moonhappening during the lunar landing of Apollo 11 at the Galerie Nächst St. Stephan in Vienna, producing a series of lunar-themed silkscreens during the live broadcast.

In the 1980s, fragmented people, signs and symbols begin to fill Kogelnik's work and in her Expansions series she used ceramic modules shown in conjunction with her paintings.

During this time Kogelnik created a series of glass sculptures, related drawings and prints, in which she sought to comment on decorative and commercial themes in art-making.

As of 2009 the foundation continues to maintain and enlarge a comprehensive database that was established in NYC of Kogelnik's works for art-historical research, and will eventually create a Catalogue Raisonné.