LA MAR FRANK C has a total of 23 patent applications. Its first patent ever was published in 1918. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy are YUEQING YEWEI ELECTRIC CO LTD, GUIZHOU CHANGZHENG SWITCH MFG CO LTD and BROWN J F.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 23 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy |
# | Technology | |
---|---|---|
#1 | Electric switches |
# | Name | Total Patents |
---|---|---|
#1 | La Mar Frank C | 23 |
#2 | Hopkins Peter J | 1 |
Publication | Filing date | Title |
---|---|---|
US2343677A | Fuse | |
US2343676A | Fuse | |
US2333942A | Fuse | |
US2292005A | Fuse indicator | |
US2276785A | Fuse indicator | |
US2199835A | Plug fuse | |
US2128418A | Indicator | |
US2225912A | Fuse integrity indicator | |
US2009089A | Indicating plug fuse | |
US2062669A | Fuse indicator | |
US1951310A | Fuse integrity indicator | |
US1951309A | Indicating plug fuse | |
US1989482A | Fuse integrity indicator | |
US1951307A | Indicating plug fuse | |
US1951308A | Fuse integrity indicator | |
US1957546A | Indicating plug fuse | |
US1845756A | Fuse | |
US1793103A | Fuse indicator | |
US1559890A | Renewable electric fuse | |
US1443136A | Thermostatic indicator for electric fuses |