Frick; Roger L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Frick; Roger L..The latest application filed is for "optical sensor for measuring physical and material properties".
Company Profile
0.52.10
- Frick; Roger L. - Minneapolis MN
- Frick; Roger L. - Hackensack MN
- Frick; Roger L. - Chanhassen MN
- Frick; Roger L. - Clear Lake MN
- Frick; Roger L. - Chauhassen MN
- Frick; Roger L. - Eden Prairie MN
Patent Activity
| Patent | Date |
|---|---|
| Electromagnetic resonant sensor with dielectric body and variable gap cavity Grant 7,330,271 - Frick February 12, 2 | 2008-02-12 |
| Tunable optical filter Grant 7,043,115 - Frick May 9, 2 | 2006-05-09 |
| Optical switch with moveable holographic optical element Grant 7,003,187 - Frick , et al. February 21, 2 | 2006-02-21 |
| Optical switch with 3D waveguides Grant 6,987,901 - Frick January 17, 2 | 2006-01-17 |
| Optical sensor for measuring physical and material properties Grant 6,901,101 - Frick May 31, 2 | 2005-05-31 |
| Scalable process transmitter Grant 6,898,980 - Behm , et al. May 31, 2 | 2005-05-31 |
| Multi-phase measurement system with synchronized sigma delta converters Grant 6,873,277 - Frick March 29, 2 | 2005-03-29 |
| Optical Sensor For Measuring Physical And Material Properties App 20050063444 - Frick, Roger L. | 2005-03-24 |
| Multi-phase Measurement System With Synchronized Sigma Delta Converters App 20050062628 - Frick, Roger L. | 2005-03-24 |
| Electromagnetic resonant sensor App 20040233458 - Frick, Roger L. | 2004-11-25 |
| Integrated transparent substrate and diffractive optical element Grant 6,810,176 - Frick , et al. October 26, 2 | 2004-10-26 |
| Tunable optical filter App 20040120638 - Frick, Roger L. | 2004-06-24 |
| Scalable process transmitter App 20040089075 - Behm, Steven M. ; et al. | 2004-05-13 |
| Optical switch with 3D waveguides App 20030223681 - Frick, Roger L. | 2003-12-04 |
| Gas fill system in a pressure transmitter Grant 6,609,427 - Westfield , et al. August 26, 2 | 2003-08-26 |
| Process sensor module having a single ungrounded input/output conductor Grant 6,508,131 - Frick January 21, 2 | 2003-01-21 |
| Capacitive pressure sensing with moving dielectric Grant 6,505,516 - Frick , et al. January 14, 2 | 2003-01-14 |
| Scalable process transmitter Grant 6,457,367 - Behm , et al. October 1, 2 | 2002-10-01 |
| Scalable process transmitter App 20020108448 - Behm, Steven M. ; et al. | 2002-08-15 |
| Integrated transparent substrate and diffractive optical element App 20020047129 - Frick, Roger L. ; et al. | 2002-04-25 |
| Optical switch with moveable holographic optical element App 20020048423 - Frick, Roger L. ; et al. | 2002-04-25 |
| Process sensor module having a single ungrounded input/output conductor App 20020011115 - Frick, Roger L. | 2002-01-31 |
| Process pressure measurement devices with improved error compensation Grant 6,295,875 - Frick , et al. October 2, 2 | 2001-10-02 |
| Pressure sensor cavity etched with hot POCL.sub.3 gas Grant 6,082,199 - Frick , et al. July 4, 2 | 2000-07-04 |
| Method of making a pressure transmitter having pressure sensor having cohered surfaces Grant 6,003,219 - Frick , et al. December 21, 1 | 1999-12-21 |
| Process control transmitter Grant 5,705,978 - Frick , et al. January 6, 1 | 1998-01-06 |
| Capacitive pressure sensor for a pressure transmitted where electric field emanates substantially from back sides of plates Grant 5,637,802 - Frick , et al. June 10, 1 | 1997-06-10 |
| Suspended diaphragm pressure sensor Grant 5,483,834 - Frick January 16, 1 | 1996-01-16 |
| Capacitive pressure sensor having circuitry for eliminating stray capacitance Grant 5,424,650 - Frick June 13, 1 | 1995-06-13 |
| Correction of a pressure indication in a pressure transducer due to variations of an environmental condition Grant 5,329,818 - Frick , et al. July 19, 1 | 1994-07-19 |
| Transmitter with multifunction adjustment Grant 5,253,511 - Jaramillo , et al. October 19, 1 | 1993-10-19 |
| Three wire low power transmitter Grant 5,245,333 - Anderson , et al. September 14, 1 | 1993-09-14 |
| Line pressure compensator for a pressure transducer Grant 5,163,326 - Frick November 17, 1 | 1992-11-17 |
| Vernier voltage-to-digital converter with a storage capacitance selectable in magnitude Grant 5,155,445 - Frick , et al. October 13, 1 | 1992-10-13 |
| Charged balanced feedback measurement circuit Grant 5,083,091 - Frick , et al. January 21, 1 | 1992-01-21 |
| Multimodulus pressure sensor Grant 4,944,187 - Frick , et al. July 31, 1 | 1990-07-31 |
| Charge balanced feedback transmitter Grant 4,878,012 - Schulte , et al. October 31, 1 | 1989-10-31 |
| Digital transmitter with variable resolution as a function of speed Grant 4,866,435 - Frick September 12, 1 | 1989-09-12 |
| Modular transmitter Grant 4,833,922 - Frick , et al. May 30, 1 | 1989-05-30 |
| Transmitter with internal serial bus Grant 4,818,994 - Orth , et al. April 4, 1 | 1989-04-04 |
| Isolator apparatus Grant 4,798,089 - Frick , et al. January 17, 1 | 1989-01-17 |
| Transmitter with vernier measurement Grant 4,791,352 - Frick , et al. December 13, 1 | 1988-12-13 |
| Analog transducer circuit with digital control Grant 4,783,659 - Frick November 8, 1 | 1988-11-08 |
| Transmitter with an improved span adjustment Grant 4,748,852 - Frick June 7, 1 | 1988-06-07 |
| Flangeless transmitter coupling to a flange adapter union Grant 4,745,810 - Pierce , et al. May 24, 1 | 1988-05-24 |
| Capacitance pressure sensor Grant 4,730,496 - Knecht , et al. March 15, 1 | 1988-03-15 |
| Capacitive sensing cell made of brittle material Grant 4,603,371 - Frick July 29, 1 | 1986-07-29 |
| Circuit for capacitive sensor made of brittle material Grant 4,586,108 - Frick April 29, 1 | 1986-04-29 |
| Pressure sensing cell using brittle diaphragm Grant 4,578,735 - Knecht , et al. March 25, 1 | 1986-03-25 |
| Two wire circuit having an adjustable span Grant 4,502,003 - Frick February 26, 1 | 1985-02-26 |
| Control circuit for current to pressure converter Grant 4,481,967 - Frick November 13, 1 | 1984-11-13 |
| Apparatus for conveying fluid pressures to a differential pressure transducer Grant 4,466,290 - Frick August 21, 1 | 1984-08-21 |
| Capacitive pressure transducer with isolated sensing diaphragm Grant 4,370,890 - Frick February 1, 1 | 1983-02-01 |
| Current to pressure converter apparatus Grant 4,325,399 - Frick April 20, 1 | 1982-04-20 |
| Split bar vortex shedding flowmeter Grant 4,197,739 - Frick April 15, 1 | 1980-04-15 |
| Vortex shedding flowmeter assembly Grant 4,186,599 - Frick February 5, 1 | 1980-02-05 |
| Vortex shedding flowmeter construction Grant 4,171,643 - Frick October 23, 1 | 1979-10-23 |
| Transducer for converting a varying reactance signal to a DC current signal Grant 3,975,719 - Frick August 17, 1 | 1976-08-17 |
| Differential Pressure Transducer Grant 3,800,413 - Frick April 2, 1 | 1974-04-02 |
| Diaphrgam Construction For Differential Pressure Transducer Grant 3,793,885 - Frick February 26, 1 | 1974-02-26 |
| Telemetering Transducer Circuitry For Converting A Capacitance Signal To A Dc Current Signal Grant 3,646,538 - Frick February 29, 1 | 1972-02-29 |
| Extruder Pressure Sensor Grant 3,581,572 - Frick June 1, 1 | 1971-06-01 |
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