AltSci published a working catalog on Tuesday. Forty Biefeld-Brown, ion wind and electrogravitic patents and device designs, 1928 through 2024, each one with the inventor, the date, a plain description of what the thing does, and a link to the patent itself. Tim Ventura assembled it. Entry one is Thomas Townsend Brown's Gravitator, British patent GB300311A, 1928. Entry ten is Alexander de Seversky's Ionocraft, US3130945A, 1964, high voltage emitters over collector grids. Entry thirty two is Terence Bates and his concentric capacitors with dissimilar dielectrics, GB2467114A, 2010. Entry forty is James Wayne Purvis and a pulsed electric field propulsion system granted in 2024. Ventura says plainly that a patent is not verification that any of these produced thrust. That honesty is what makes it useful. This is a prior art map for anyone building asymmetric capacitor hardware. Ninety six years of people who got far enough to file, with the drawings and the claims one click away. Read what was tried, see where it stopped, and skip rebuilding a dead end. Source: https://www.altsci.net/40-biefeld-brown-ion-wind-and-electrogravitic-patents-experiments/ Which entry would you pull off that list and build first with modern instrumentation?