Kenner’s innovation was to integrate the spare roll storage with the holder itself, making the spare always within reach and always organized.

Again: not a complicated invention.

But a useful one, addressing a real and universal inconvenience with a clean, integrated solution.

The pattern across all five of Kenner’s patents is consistent.

She was not inventing for the sake of inventing, not demonstrating technical virtuosity for its own sake.

She was solving problems — specific, practical problems that specific, real people experienced in their daily lives.

The solutions she developed were appropriate to the problems: not overcomplicated, not dependent on expensive or rare materials, not requiring unusual expertise to use.