How do you fit double the ink into the refill of a ballpen? By twisting the tube into a spiral, that's how. Called the T&T Pen-Ink Chamber, the helical coil fits into any regular pen barrel and sits ...

When it comes to pens, they have largely remained unchanged since the disposable pen first appeared on the market. Typically, you get a roller ball tip attached to a tube filled with ink in various ...

I don't have to write things out by hand much anymore, but I can remember back in college and when I had a real job it seemed like my pen was constantly running out of ink. It sucks to have to stop ...

Back at CES in Las Vegas in January this year, I previewed the Nuwa Pen; a three-camera-containing ballpoint pen that promises to turn your scribbles into digital notes and then apply OCR and AI ...