Volvo opened its seatbelt patent to competitors
Volvo could have treated its new belt as a proprietary advantage. Instead, it made the three-point seatbelt patent available to other automakers without charging them to use it. That meant rival manufacturers could install the same basic safety design rather than develop a separate one or pay Volvo for access.
The choice mattered because a safety device protects people only when it is fitted to cars and used widely. Sharing the design helped it spread beyond Volvo’s own models, turning a company invention into an industry-wide tool.
Why the design was a major step
Earlier belts often restrained only the lap, or were less effective at keeping the upper body in place. Volvo engineer Nils Bohlin’s design used one continuous belt arranged across both the hips and chest: the lap portion held the pelvis, while a diagonal strap crossed the torso. The belt’s geometry helped distribute crash forces across stronger parts of the body and kept an occupant from pitching forward.
That combination made the restraint practical for everyday car use. A simple buckle near the hip let the driver fasten both sections together, instead of managing separate straps. Volvo introduced the design in its cars in 1959, while opening the patent made it possible for other manufacturers to adopt the same approach.
The enduring consequence was not just a better belt in one brand of car. It was a safety design that could become common across the industry without its inventor insisting on exclusive control.
