Inventor
Richard A. Keller
Inventor
Los Alamos, NM, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties29%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems12%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms10%
Y10TTechnical subjects covered by former us classification10%
G05FSystems for regulating electric or magnetic variables7%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
B01DSeparation2%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects2%
PatentTitleYear
8,403,615'Vehicle lift barrier'20137,202,036'Quenching methods for background reduction in luminescence-based probe-target binding assays'20076,309,886'High throughput analysis of samples in flowing liquid'20016,169,681'Power supply topology to reduce the effects of supply pumping'20016,049,380'Single molecule identification using selected fluorescence characteristics'20005,834,204'Apparatus for reducing solvent luminescence background emissions'19985,827,663'Method and apparatus for reducing solvent luminescence background emissions'19985,799,682'Reduction of diffusional defocusing in hydrodynamically focused flows'19985,558,998'DNA fragment sizing and sorting by laser-induced fluorescence'19965,405,747'Method for rapid base sequencing in DNA and RNA with two base labeling'19955,285,367'Linear load circuit to control switching power supplies under minimum load conditions'19945,245,526'Below ground current sensing with current input to control threshold'19935,164,891'Low noise voltage regulator and method using a gated single ended oscillator'19924,962,037'Method for rapid base sequencing in DNA and RNA'19904,845,368'Method for the substantial reduction of quenching effects in luminescence spectrometry'19894,771,840'Articulated power-driven shopping cart'19884,544,274'Apparatus and method for measurement of weak optical absorptions by thermally induced laser pulsing'19854,447,153'Apparatus and method for quantitative measurement of small differences in optical absorptivity between two samples using differential interferometry and the thermooptic effect'19844,402,606'Optogalvanic intracavity quantitative detector and method for its use'19834,184,127'Frequency stabilized laser'19804,148,586'Apparatus for galvanic detection of optical absorptions'19794,037,271'Switching regulator power supply'19774,025,406'Photochemical method for chlorine isotopic enrichment'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1979Patents assigned to US COMMERCE (2)· patent assignee history
1977–2001Based in Palo Alto, CA, US· patent location history
1979–2001Based in White Rock, NM, US· patent location history
1983–2013Patents assigned to KELLER RICHARD A (2)· patent assignee history
1983–2007Based in Los Alamos, NM, US· patent location history
1984–1989Patents assigned to US ENERGY (3)· patent assignee history
1988Based in Hartland, WI, US· patent location history
1992–1994Patents assigned to POWER INTEGRATIONS INC (3)· patent assignee history
1995–2001Patents assigned to UNIV CALIFORNIA (7)· patent assignee history
2013Based in Oconomowoc, WI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV CALIFORNIA | 7 | 1995–2001 |
| POWER INTEGRATIONS INC | 3 | 1992–1994 |
| US ENERGY | 3 | 1984–1989 |
| KELLER RICHARD Aself | 2 | 1983–2013 |
| US COMMERCE | 2 | 1977–1979 |
Locations
| Location | Patents | Span |
|---|---|---|
| Los Alamos, NM, US | 12 | 1983–2007 |
| Palo Alto, California, US | 5 | 1977–2001 |
| White Rock, NM, US | 3 | 1979–2001 |
| Oconomowoc, WI, US | 1 | 2013 |
| Hartland, WI, US | 1 | 1988 |