Inventor
Dennis L. Hart
Inventor
Incline Village, NV, US
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Lprimary
F16LPipes22%
Y10TTechnical subjects covered by former us classification10%
G01MTesting static or dynamic balance of machines or structures9%
E04GScaffolding8%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines8%
A62CFire-fighting7%
B63CLaunching, hauling-out, or dry-docking of vessels7%
E04BGeneral building constructions7%
F16KValves6%
A62BDevices, apparatus or methods for life-saving3%
PatentTitleYear
10,989,334Bracket for positioning and protecting pipes in concrete202110,975,567Extendable sleeve for poured concrete deck202110,656,042Pipe pressure testing method and apparatus202010,344,472Extendable sleeve for a poured concrete deck20199,964,461Pipe pressure testing method and apparatus20189,476,199'Extendable sleeve for poured concrete deck'20169,388,570'Extendable sleeve for poured concrete deck'20169,103,116'Extendable sleeve for poured concrete deck'20159,086,174'Extendable sleeve for poured concrete deck'20159,022,326'Pipe holder and support'20158,887,768'Pipe pressure testing method and apparatus'20148,317,142'Shower bracket'20128,210,029'Pipe pressure testing method and apparatus'20127,963,567'Anti-rotation pipe locator and holder'20117,654,287'Dual slide gate valve and method for using same'20107,621,487'Twist-lock base for pipe holders'20097,398,675'Dual slide gate valve and method for using same'20087,377,472'Pipe and cable holder'20086,997,041'Dual slide gate valve and method for using same'20066,655,413'Method and apparatus for pressure testing pipe lines'20036,019,253'Bag and box valve system'20005,944,300'Bag and box valve system'19995,413,096'Regulator with improved high pressure seat due to a plastic-covered valve body'19955,184,609'Divers first stage adjustable regulator'19934,856,120'Dive mask'1989D0297156'Inflator for buoyancy compensator'19884,668,016'Mining machine with adjustable jib'19874,230,140'Environmental first stage scuba regulator'19804,227,521'Air system for scuba diving'19804,045,835'Power deflator mechanism for scuba buoyancy vests'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1988Patents assigned to UNDER SEA INDUSTRIES (4)· patent assignee history
1977–1988Based in Hacienda Heights, CA, US· patent location history
1989–2003Based in Newport Beach, CA, US· patent location history
2003–2019Patents assigned to SECURUS INC (17)· patent assignee history
2006–2020Based in Incline Village, NV, US· patent location history
2009Based in Reno, NV, US· patent location history
2012–2014Patents assigned to BROWN LARRY D (2)· patent assignee history
2012–2014Patents assigned to GONZALEZ CRISTOBAL (2)· patent assignee history
2018–2021Patents assigned to RELIANCE WORLDWIDE CORP (5)· patent assignee history
2019–2021Based in Poway, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SECURUS INC | 17 | 2003–2019 |
| RELIANCE WORLDWIDE CORP | 5 | 2018–2021 |
| UNDER SEA INDUSTRIES | 4 | 1977–1988 |
| BROWN LARRY D | 2 | 2012–2014 |
| GONZALEZ CRISTOBAL | 2 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Incline Village, NV, US | 15 | 2006–2020 |
| Newport Beach, California, US | 6 | 1989–2003 |
| Hacienda Heights, California, US | 4 | 1977–1988 |
| Poway, California, US | 3 | 2019–2021 |
| Reno, NV, US | 1 | 2009 |