Power Seat

Harken probly holds the patent on their winches. Ropteks patent is pretty specific I would guess. I doubt three is any infringement. ACTSafe also makes motorized ascenders i9n the $9-12k range. The Wraptor is <$3k with a rope.
 
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Looks like a cross between a Wraptor and a GRCS. Wonder if there are any patent infringements there.

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Since Harken supplies GRCS the winch where's the infringement?

Any patent infringement would have to be on specific components if they are separately patented.
 

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