Designers -who's been around the longest ?


I vote for John Curl (Parasound) and Morris Kessler (SAE), both began in the late 60s. 
jonnie22
I was going to offer Thomas Edison, but @thecarpathian won this thread with the first reply. Cheers,
Spencer
I’ll clarify -when their career in design began. The (2) I mentioned are their current co.
Are you talking about electronics? All around? Bob Carver, still alive and still designing. James Martini (JBL & Altec) + James B. Lansing. I personally don't like Nelson Pass because he bought ALL the extra Sony V-FET transistors. People like me that own V-FET amps now have no replacement parts😒, but a good designer.