Inventor
David W. Hartwell
Inventor
Bolton, MA, US
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing74%
H04LTransmission of digital information, e.g. telegraphic communication9%
H03KPulse technique6%
H05KPrinted circuits6%
A47BTables3%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses3%
PatentTitleYear
10,997,296System and method for restoration of a trusted system firmware state202110,585,608System and method for securely isolating a system feature20208,391,022'Multi-function mezzanine board alignment and mounting device, with integrated handle'20138,364,851'Scalable efficient I/O port protocol'20137,443,694'25 degree tool-less expansion card bracket'20087,200,770'Restoring access to a failed data storage device in a redundant memory system'20077,065,169'Detection of added or missing forwarding data clock signals'20066,977,979'Enhanced clock forwarding data recovery'20056,976,184'Clock forward initialization and reset signaling technique'20056,920,516'Anti-starvation interrupt protocol'20056,826,653'Block data mover adapted to contain faults in a partitioned multiprocessor system'20046,738,836'Scalable efficient I/O port protocol'20046,724,850'Deterministic hardware behavior between multiple asynchronous clock domains through the novel use of a PLL'20046,701,387'Adaptive data fetch prediction algorithm'20046,668,335'System for recovering data in a multiprocessor system comprising a conduction path for each bit between processors where the paths are grouped into separate bundles and routed along different paths'20036,640,272'Automated backplane cable connection identification system and method'20036,629,257'System and method to automatically reset and initialize a clocking subsystem with reset signaling technique'20036,360,285'Apparatus for determining memory bank availability in a computer system'20026,076,129'Distributed data bus sequencing for a system bus with separate address and data bus protocols'20005,666,551'Distributed data bus sequencing for a system bus with separate address and data bus protocols'19975,652,861'System for interleaving memory modules and banks'19975,544,179'Mis-synchronization detection system using a combined error correcting and cycle identifier code'19965,412,788'Memory bank management and arbitration in multiprocessor computer system'19955,388,222'Memory subsystem command input queue having status locations for resolving conflicts'19955,301,283'Dynamic arbitration for system bus control in multiprocessor data processing system'19945,088,419'Tables'19924,979,097'Method and apparatus for interconnecting busses in a multibus computer system'19904,864,496'Bus adapter module for interconnecting busses in a multibus computer system'19894,858,234'Method and apparatus for error recovery in a multibus computer system'19894,837,767'Bus adapter module with improved error recovery in a multibus computer system'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2000Patents assigned to DIGITAL EQUIPMENT CORP (10)· patent assignee history
1989–1997Based in Boxboro, MA, US· patent location history
1992–2013Patents assigned to HARTWELL DAVID W (3)· patent assignee history
1997–2000Based in Bocton, MA, US· patent location history
2002Patents assigned to COMPAQ COMPUTER CORP (1)· patent assignee history
2002–2013Based in Bolton, MA, US· patent location history
2003–2013Patents assigned to HEWLETT PACKARD DEVELOPMENT CO (12)· patent assignee history
2006Based in Boston, MA, US· patent location history
2020–2021Patents assigned to ORACLE INT CORP (2)· patent assignee history
2020–2021Based in Lancaster, MA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HEWLETT PACKARD DEVELOPMENT CO | 12 | 2003–2013 |
| DIGITAL EQUIPMENT CORP | 10 | 1989–2000 |
| HARTWELL DAVID Wself | 3 | 1992–2013 |
| ORACLE INT CORP | 2 | 2020–2021 |
| COMPAQ COMPUTER CORP | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bolton, Massachusetts, US | 15 | 2002–2013 |
| Boxboro, Massachusetts, US | 9 | 1989–1997 |
| Lancaster, Massachusetts, US | 2 | 2020–2021 |
| Bocton, Massachusetts, US | 2 | 1997–2000 |
| Boston, Massachusetts, US | 1 | 2006 |