Inventor
PERKINS ROGER
8 patents
⚠️ This page may combine multiple inventors who share the name “PERKINS ROGER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BBC BROWN BOVERI & CIE
6 patentsUS4729053AMar 1, 1988
Process for the production of a lightning arrester and products produced thereby
BBC BROWN BOVERI & CIE43 citations93
US4767729AAug 30, 1988
Process for the preparation of a voltage-dependent ceramic resistance based on ZnO, and a resistance produced by the process
BBC BROWN BOVERI & CIE27 citations89
US4559167ADec 17, 1985
Zinc oxide varistor
BBC BROWN BOVERI & CIE21 citations80
US4135953AJan 23, 1979
Permanent magnet and method of making it
BBC BROWN BOVERI & CIE18 citations72
US4081297AMar 28, 1978
RE-Co-Fe-transition metal permanent magnet and method of making it
BBC BROWN BOVERI & CIE18 citations72
US4811478AMar 14, 1989
Process for the production of a lightning arrester and products produced thereby
BBC BROWN BOVERI & CIE1 citations59