Fire safety is not exciting, but fire is genuinely dangerous, and a product that reduces fire risk by ensuring more complete cigarette extinguishment is a contribution to human safety.

The bathroom tissue holder improvement addressed a universal inconvenience with a simple, integrated solution.

The product is modest in its ambitions and entirely successful in its execution.

These five contributions, considered together, are the measure of Mary Kenner’s inventive achievement.

They are modest in scale — none of them represents a major technological breakthrough of the kind that attracts historical celebration.

But they are genuine improvements in the daily lives of real people, designed by someone who paid close attention to the practical challenges of everyday life and who had the design intelligence to address those challenges specifically and effectively.