Inventor
David J. Hall
Inventor
Madison, AL, US
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E02Fprimary
E02FDredging12%
G01SRadio direction-finding10%
G08BSignalling systems, e.g. personal calling systems8%
H04BTransmission8%
B63HMarine propulsion or steering6%
E21CMining or quarrying4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
A01CPlanting2%
A47JKitchen equipment2%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing2%
PatentTitleYear
10,689,981Method of moving material202010,648,331Method of strip mining202010,024,646Method and apparatus for determining a hole depth20189,957,688Excavator bucket20188,701,313'Blade assembly for an excavating apparatus'20148,291,624'Blade assembly for an excavating apparatus'20127,541,968'System and method for detecting an intruder using impulse radio technology'20097,129,886'System and method for detecting an intruder using impulse radio technology'20066,822,604'System and method for detecting an intruder using impulse radio technology'20046,661,342'System and method for using impulse radio technology to track the movement of athletes and to enable secure communications between the athletes and their teammates, fans or coaches'20036,614,384'System and method for detecting an intruder using impulse radio technology'20036,264,403'Pile and method of driving a pile'20015,999,383'Arrangement for detecting quenches in superconducting coils'19995,996,702'System for monitoring movement of a vehicle tool'19995,630,401'Combined fuel injection pump and nozzle'19975,236,340'Containers'19935,201,680'Marine propulsion device having quick-disconnect connector'19935,195,914'Two-stage tilt cylinder mechanism for marine propulsion stern bracket assembly'19935,154,651'Marine propulsion device tilt tube'19924,853,539'Glow discharge mass spectrometer'19894,355,588'Transplanting machine'19824,169,592'Electronic reflex game'19794,072,282'Supercritical aerofoils'19784,023,018'Navigation system and method'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1993Patents assigned to HALL DAVID J (3)· patent assignee history
1977–1979Based in Spring Lake, MI, US· patent location history
1992–1997Patents assigned to OUTBOARD MARINE CORP (4)· patent assignee history
1992–1997Based in Zion, IL, US· patent location history
1999–2018Based in Toowoomba, AU· patent location history
2003–2009Patents assigned to TIME DOMAIN CORP (5)· patent assignee history
2003–2009Based in Madison, AL, US· patent location history
2012–2014Patents assigned to HALL DAVID JOHN (2)· patent assignee history
2020Patents assigned to OPTI MINEZ PTY LTD (2)· patent assignee history
2020Based in Queensland, AU· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TIME DOMAIN CORP | 5 | 2003–2009 |
| OUTBOARD MARINE CORP | 4 | 1992–1997 |
| HALL DAVID Jself | 3 | 1977–1993 |
| HALL DAVID JOHNself | 2 | 2012–2014 |
| OPTI MINEZ PTY LTD | 2 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Madison, AL, US | 5 | 2003–2009 |
| Toowoomba, AU | 4 | 1999–2018 |
| Zion, Illinois, US | 4 | 1992–1997 |
| Spring Lake, MI, US | 2 | 1977–1979 |
| Queensland, AU | 1 | 2020 |