Inventor

SCHAEFFER DAVID

US4 patents

⚠️ This page may combine multiple inventors who share the name “SCHAEFFER DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ABB SCHWEIZ AG

2 patents

US10819112B1Oct 27, 2020

Feeder line fault response using direct current interconnection system

ABB SCHWEIZ AG6 citations71

US11811219B2Nov 7, 2023

Restoration of fault insulated feeder

ABB SCHWEIZ AG0 citations60

(unassigned)

1 patent

US6460281B1Oct 8, 2002

Single trigger sequential firing mechanism for a double barrel firearm

20 citations77

WIRTZ MICHAEL M

1 patent

US8064640B2Nov 22, 2011

Method and apparatus for generating a precision fires image using a handheld device for image based coordinate determination

WIRTZ MICHAEL M8 citations70