Did Keith, by any chance, mention if the reason that the competition is now referring to their Hydraulic Hybrids as being "infinitely variable hydraulic drivetrains" has anything to do with Torvec's patent on the Infinitely Variable Hydraulic Transmission?
Did Keith, by any chance, happen to mention if the competition's production of their "differential steering systems" has anything to do with Torvec's patented design of the FTV®'s unique steering system called Steer-Drive?
"The Cat differential steering system upholds its reputation for allowing the operator to power both tracks through turns while retaining blade loads. The D7E system, however, takes maneuverability to new levels by being the first differential steer tractor ever to be able to make lock-track pivot turns."
These two inventions seem to attempt to accomplish the same exact results, however, I'm sure that the Torvec version is much better even though it hasn't been commercialized as of yet.