Inventor
Howard W. Francis
Inventor
Baltimore, MD, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers50%
A61BDiagnosis25%
A61FFilters implantable into blood vessels25%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2017–2020Patents assigned to UNIV JOHNS HOPKINS (6)· patent assignee history
2017–2020Based in Baltimore, MD, US· patent location history
2018Based in Batimore, MD, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV JOHNS HOPKINS | 6 | 2017–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Baltimore, Maryland, US | 5 | 2017–2020 |
| Batimore, Maryland, US | 1 | 2018 |