An example I'd encountered was a set of papers out of the US Naval Research Lab on fuel synthesis (electricity + seawater => hydrocarbon jet fuel). The citations dated only to the mid/late 1990s, though it turns out prior art and development date to at least the 1960s (for electically-based fuel synthesis), the 1930s if Fischer-Tropsch synthesis from coal is included.
https://old.reddit.com/r/dredmorbius/comments/22k71x/us_navy...
The impression generated was tremendously misleading.
I ended up digging into the history myself:
https://old.reddit.com/r/dredmorbius/comments/29ihl7/us_doe_...
https://old.reddit.com/r/dredmorbius/comments/28nqoz/electri...