• All sections
• G - Physics
• G10K - Sound-producing devices; methods or devices for protecting against, or for damping, noise or other acoustic waves in general; acoustics not otherwise provided for
• G10K 9/18 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers - Details, e.g. bulbs, pumps, pistons, switches or casings

Patent holdings for IPC class G10K 9/18

Total number of patents in this class: 22

10-year publication summary

Principal owners for this class