As 3M’s complaint notes, the company identified a need for developing more efficient and less time-consuming methods for paint mixing, filtering and spray gun loading processes back in 1995.

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In the old days, a painter would crank up his compressor, connect the hose to his gun, and spray away with 60, 80, or 100 psi! That was the only way he could "vacuum" the high-viscosity paint from ...

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The patents enforced by 3M included EP1961488 B1, EP 1,366,823 B1, EP 2,090,372 B1 and EP 2,090,373 B1 all of which relate to 3M’s Paint Preparation System (PPS™) technology.