A Third Unique Hosel Design Patent for Callaway
In the past couple of months I have covered two Callaway design patents directed to rather unusual hosel designs (HERE and HERE). It is easy to dismiss one or two wacky design patents as just something dreamt up in R&D that is unlikely to ever see the light of day in an actual product; but by the time that a third variation appears in a design patent one has to start thinking “they may be serious about bringing some of these variations to market.” This week USPN 
There must be some performance benefit associated with these new hosel designs, otherwise it is hard to imagine a Tour player saying “boy that fits my eye, give me one of those.” I can’t wait to learn “the rest of the story.”
Dave Dawsey – Keeping an Eye on Innovative Golf Club Design Patents