Inventor
Gerd Kuhfus
Inventor
London, CA
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Mprimary
H04MTelephonic communication50%
H01HElectric switches25%
H01RElectrically-conductive connections15%
G02BOptical elements, systems or apparatus5%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines5%
PatentTitleYear
5,187,743'Telephone base with a display unit'19935,130,629'Telephone terminal bases'19924,887,972'Snap-together enclosure for a telephone jack receptacle'19894,672,666'Telephone handset for a telephone set'19874,647,728'Programming switch assembly for communication terminals'19874,636,591'Integral transmitter and modular jack assembly for a telephone set'19874,593,159'Base plate for telephone set base'19864,556,763'Simplified line switch for a telephone set'19854,349,705'Lighted telephone dial'19824,317,968'Multiple cantilever spring contact switch'19824,061,411'Multi-outlet adaptor for plug-in telephones'19774,047,787'Extension cords for plug-in telephones'19773,969,721'Light emitting diode indicator assembly for a multiple pushbutton array'19763,946,977'Telephone unit with retractable mounting bracket'19763,946,171'Multiple pushbutton switch assembly for telephone sets and the like'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976Patents assigned to NORTHERN ELECTRIC CO (3)· patent assignee history
1976–1987Based in London, CA· patent location history
1977–1993Patents assigned to NORTHERN TELECOM LTD (12)· patent assignee history
1989–1993Based in Dorchester, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NORTHERN TELECOM LTD | 12 | 1977–1993 |
| NORTHERN ELECTRIC CO | 3 | 1976 |
Locations
| Location | Patents | Span |
|---|---|---|
| London, CA | 12 | 1976–1987 |
| Dorchester, CA | 3 | 1989–1993 |