Inventor
David E. Wallace
Inventor
Hayward, CA, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing29%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
C01BNon-metallic elements4%
C01DCompounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium4%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals4%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds4%
C02FTreatment of water, waste water, sewage, or sludge4%
F25DRefrigerators4%
PatentTitleYear
9,798,845'User grey cell'20179,495,700'Portfolio-level decision support'20167,398,490'Digital circuit layout techniques using binary decision diagram for identification of input equivalence'20087,020,855'Digital circuit layout techniques using identification of input equivalence'20066,782,305'Method of geometric information sharing and parametric consistency maintenance in a collaborative design environment'20046,477,688'Logic equivalence leveraged placement and routing of an IC design'20026,473,885'Digital circuit layout techniques using circuit decomposition and pin swapping'20026,360,352'Digital circuit layout techniques'20026,349,330'Method and appparatus for generating a compact post-diagnostic case record for browsing and diagnostic viewing'20025,720,884'Method for automatic control of corrosion in a water distribution system'19985,410,886'Method and apparatus for supplementing mechanical refrigeration by the controlled introduction of a cryogen'19955,059,407'Liquid carbon dioxide injection in exothermic chemical reactions'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991Patents assigned to LIQUID CARBONIC CORP (1)· patent assignee history
1995Patents assigned to AMERICAN CRYOGAS IND INC (1)· patent assignee history
1998Based in Sun Prairie, WI, US· patent location history
2002Patents assigned to EIGDEN VIDEO (1)· patent assignee history
2002–2017Based in Hayward, CA, US· patent location history
2002Based in Nevada City, CA, US· patent location history
2004Based in Lexington, MA, US· patent location history
2006–2008Patents assigned to WALLACE DAVID E (2)· patent assignee history
2016Based in San Francisco, CA, US· patent location history
2017Patents assigned to BLUE PEARL SOFTWARE INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WALLACE DAVID Eself | 2 | 2006–2008 |
| AMERICAN CRYOGAS IND INC | 1 | 1995 |
| BLUE PEARL SOFTWARE INC | 1 | 2017 |
| EIGDEN VIDEO | 1 | 2002 |
| LIQUID CARBONIC CORP | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hayward, California, US | 6 | 2002–2017 |
| San Francisco, California, US | 1 | 2016 |
| Lexington, Massachusetts, US | 1 | 2004 |
| Nevada City, California, US | 1 | 2002 |
| Sun Prairie, WI, US | 1 | 1998 |