Inventor
Karl Humphreys
Inventor
Edmonton, CA
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling14%
F16LPipes14%
G06FElectric digital data processing14%
G10LSpeech analysis techniques or speech synthesis14%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%
C02FTreatment of water, waste water, sewage, or sludge7%
G10HElectrophonic musical instruments7%
H04LTransmission of digital information, e.g. telegraphic communication7%
H04NPictorial communication, e.g. television7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
10,965,976Systems and methods for delivering relevant media content by inferring past media content consumption202110,908,873Command confirmation for a media playback device20215,804,067'Apparatus for magnetic treatment of liquids'19985,468,029'Pipe coupling'19955,330,239'Pipe coupling'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–1995Patents assigned to IPSCO ENTERPRISES INC (2)· patent assignee history
1994–1998Based in Edmonton, CA· patent location history
1998Patents assigned to HYDROWORLD INTERNATIONAL CANAD (1)· patent assignee history
2021Patents assigned to SPOTIFY AB (2)· patent assignee history
2021Based in London, GB· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IPSCO ENTERPRISES INC | 2 | 1994–1995 |
| SPOTIFY AB | 2 | 2021 |
| HYDROWORLD INTERNATIONAL CANAD | 1 | 1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Edmonton, CA | 3 | 1994–1998 |
| London, GB | 2 | 2021 |