WK

Ward B. Krause

📍 Spotsylvania, VA: #8 of 64 inventorsTop 15%
🗺 Virginia: #7,477 of 34,511 inventorsTop 25%
Overall (All Time): #1,289,628 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D366696 Ear plug — 1996-01-30
D366313 Ear plug — 1996-01-16
5483027 Earplug with form-fitting fluid chambers — 1996-01-09
5043546 Push-button switch — 1991-08-27