WIRELESS SPECIALTY APPARATUS has a total of 71 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United States, Germany and Canada. Its main competitors in its focus markets electrical machinery and energy, machines and telecommunications are ASEA JUMET SA, DUBILIER CONDENSER & RADIO COR and KLASCHKA RUDOLF.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 66 | |
#2 | Germany | 2 | |
#3 | Canada | 1 | |
#4 | France | 1 | |
#5 | United Kingdom | 1 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Machines | |
#3 | Telecommunications | |
#4 | Basic communication technologies | |
#5 | Measurement | |
#6 | Audio-visual technology |
# | Name | Total Patents |
---|---|---|
#1 | Whittier Pickard Greenleaf | 21 |
#2 | Priess William H | 19 |
#3 | Bailey William M | 11 |
#4 | Proctor John A | 8 |
#5 | Albert Proctor John | 3 |
#6 | Byron Macpherson | 2 |
#7 | Butler Benjamin J | 2 |
#8 | Hoyt Reginald H | 1 |
#9 | Stuart Webster William | 1 |
#10 | Dane Francis W | 1 |
Publication | Filing date | Title |
---|---|---|
DE538666C | Electric capacitor with slotted active metal coatings, especially for high frequency | |
DE576861C | Antenna for direction finding and signal pick-up, in particular on and from aircraft | |
US1801413A | Rack for insulating casing condensers | |
US1807135A | Coupling transformer | |
US1725123A | Electrical condenser | |
US1805075A | Electrical condenser | |
US1715035A | Apparatus for manufacturing electrical condensers | |
US1795504A | Condenser and process | |
US1805651A | Condenser manufacture | |
US1684491A | Electrostatic condenser | |
US1775266A | Apparatus unit | |
US1738314A | Electrical condenser | |
US1824529A | Electrical condenser | |
US1824587A | Electrical condenser | |
US1824530A | Electrical condenser | |
US1697477A | Electrical condenser | |
US1779145A | Radio loop aerial | |
US1812713A | Electrical condenser | |
US1536453A | Vernier for tuning reactances | |
US1805154A | Vernier |