He was also a professional author of technical literature, nonfiction books, thrillers and a decisive biography of the master forger Han van Meegeren.

Frederik H. Kreuger stems from an old Amsterdam family where his maternal grandfather ran a small tobacco factory "Het Wapen van Spanje" in the Weteringstraat, in the old town near the Rijksmuseum.

He was the inventor of several constructions for high voltage cable systems and of equipment for the detection of partial discharges.

Kreuger was also the inventor of a system for gaining solar power from sea by large floating algea fields producing biofuel (European Patent EP07110895 – 22 June 2007).

He searched for primary sources – especially in the Netherlands – and added in this way to the knowledge gained by John Godley, 3rd Baron Kilbracken,[6] who was a pioneer in this field, and to that of Marie Louise Doudart de la Grée, who interviewed Van Meegeren in 1946 and wrote a Dutch biography[7] in 1966.

In addition, he revealed paintings under the artist's own name and he also identified some more fake Old Masters made by Van Meegeren.

[14] Numerous publications for CIGRE, in the Transactions of the IEEE Institute of Electrical and Electronics Engineers and many other scientific periodicals.