Inventor
Anthony J. Langenberg
Inventor
Brockville, CA
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B24Bprimary
B24BMachines, devices, or processes for grinding or polishing25%
H04MTelephonic communication17%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling8%
B24DTools for grinding, buffing or sharpening8%
F01DNon-positive displacement machines or engines, e.g. steam turbines8%
F16DCouplings for transmitting rotation8%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers8%
LOC088%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
D0456241'Cable guide'20024,937,877'Modular microphone assembly'19904,709,389'Telephone hook switch with elastomeric contact member'19874,414,781'Turbine sander'19834,414,782'Direct drive system for a turbine sander'19834,397,120'Suspension system for an abrading tool'19834,251,958'Surface finishing device'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1983Patents assigned to BLACK & DECKER INC (4)· patent assignee history
1981–1983Based in Brockville, CA· patent location history
1987–1990Patents assigned to NORTHERN TELECOM LTD (2)· patent assignee history
1987–2002Based in Kanata, CA· patent location history
2002Patents assigned to NORTEL NETWORKS LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BLACK & DECKER INC | 4 | 1981–1983 |
| NORTHERN TELECOM LTD | 2 | 1987–1990 |
| NORTEL NETWORKS LTD | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Brockville, CA | 4 | 1981–1983 |
| Kanata, CA | 3 | 1987–2002 |