Inventor
Klaus B. Schiefer
Inventor
Scarborough, CA
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing50%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests50%
PatentTitleYear
7,289,978'Substituting parameter markers for literals in database query language statement to promote reuse of previously generated access plans'20075,953,715'Utilizing pseudotables as a method and mechanism providing database monitor information'19995,542,073'Computer program product for choosing largest selectivities among eligible predicates of join equivalence classes for query optimization'19965,469,568'Method for choosing largest selectivities among eligible predicates of join equivalence classes for query optimization'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2007Patents assigned to IBM (4)· patent assignee history
1995–1999Based in Scarborough, CA· patent location history
2007Based in Pickering, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 4 | 1995–2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Scarborough, CA | 3 | 1995–1999 |
| Pickering, CA | 1 | 2007 |