Inventor
John W. Holfert
Inventor
Bountiful, UT, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Mprimary
A61MDevices for introducing media into, or onto, the body45%
A61BDiagnosis9%
A61FFilters implantable into blood vessels9%
B29CShaping or joining of plastics9%
B29LIndexing scheme associated with subclass b29c, relating to particular articles9%
F04BPositive-displacement machines for liquids9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
PatentTitleYear
5,324,464'Method of making a blood pumping membrance for artificial ventricles'19945,282,849'Ventricle assist device with volume displacement chamber'19945,089,014'Tubular interconnect device for use within the circulatory system'19924,981,484'Modified elliptical artificial heart'19914,976,729'Elliptical artificial heart'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1994Patents assigned to UNIV UTAH RES FOUND (3)· patent assignee history
1990–1994Based in Bountiful, UT, US· patent location history
1991–1992Patents assigned to HOLFERT JOHN W (2)· patent assignee history
1991Patents assigned to OLSEN DON B (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV UTAH RES FOUND | 3 | 1990–1994 |
| HOLFERT JOHN Wself | 2 | 1991–1992 |
| OLSEN DON B | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bountiful, UT, US | 5 | 1990–1994 |