They remind me of Enochian sigils, but unfortunately I just sold the book that had them in so I can't check. Google enochian and see what you find.
You could also try this site:
http://www.symbols.com/section/6/category/15/
However I think your best bet is to meditate on them- focus on them one at a time and try to clear your mind, see what impressions you get and what you subconscious throws up.
Blessings
Edit- the one on the left looks like a stylised symbol for Saturn, with the circle and the Nike swoosh underneath. The triangles could represent wings- didn't John Lear say something in his interview about a huge ship parked in Saturn's rings? The other three look enochian.