| Patent | Date |
|---|
Device for sampling breath air at the workplace
Grant 4,818,489 - Gonner , et al. April 4, 1 | 1989-04-04 |
Burner assembly for atomic absorption spectrometer
Grant 4,776,694 - Rogasch , et al. October 11, 1 | 1988-10-11 |
Closure for sample bottles
Grant 4,773,552 - Boege , et al. September 27, 1 | 1988-09-27 |
Grating spectrometer
Grant 4,563,090 - Witte January 7, 1 | 1986-01-07 |
Needle assembly for introducing a carrier gas into a sample vessel
Grant 4,558,603 - Chlosta , et al. December 17, 1 | 1985-12-17 |
Electric heater for a rotating sample vessel container in a sampling device for gas chromatography
Grant 4,554,436 - Chlosta , et al. November 19, 1 | 1985-11-19 |
Sampler for feeding samples in gas chromatography
Grant 4,476,733 - Chlosta , et al. October 16, 1 | 1984-10-16 |
Sample transport mechanism
Grant 4,413,534 - Tomoff , et al. November 8, 1 | 1983-11-08 |
Apparatus for automatically transporting liquid samples to an analyzer
Grant 4,312,591 - Tomoff January 26, 1 | 1982-01-26 |
Graphite tube assembly
Grant 4,303,339 - Glaser , et al. December 1, 1 | 1981-12-01 |
Sample feeding device
Grant 4,294,126 - Tomoff , et al. October 13, 1 | 1981-10-13 |
Method and apparatus for generating and transferring a gaseous test sample
Grant 4,268,478 - Huber * May 19, 1 | 1981-05-19 |
Closure for sample vials
Grant 4,248,355 - Kolb , et al. February 3, 1 | 1981-02-03 |
Apparatus for automatically generating and measuring gaseous measuring samples from a series of liquid samples
Grant 4,230,665 - Huber October 28, 1 | 1980-10-28 |
Automatic liquid flow sampling apparatus
Grant 4,204,430 - Tamm , et al. May 27, 1 | 1980-05-27 |
Sampling apparatus for chromatographic instruments
Grant 4,199,988 - Riegger April 29, 1 | 1980-04-29 |
Digital fluid flow rate controller
Grant 4,191,215 - Gonner March 4, 1 | 1980-03-04 |
Selected element concentration for flameless atomic absorption spectroscopic measurements
Grant 4,162,849 - Huber July 31, 1 | 1979-07-31 |
Method and apparatus for generating and transferring a gaseous test sample
Grant 4,138,215 - Huber February 6, 1 | 1979-02-06 |
Method and device for pyrometric temperature measurements
Grant 4,120,200 - Braun October 17, 1 | 1978-10-17 |
Sampling procedure and device for flameless atomic absorption spectroscopy
Grant 4,111,051 - Tamm , et al. September 5, 1 | 1978-09-05 |
Method and apparatus for automatically performing series analyses
Grant 4,068,529 - Konig January 17, 1 | 1978-01-17 |
Thermal conductivity detector circuit
Grant 4,057,755 - Piesche November 8, 1 | 1977-11-08 |
Automatic sample preparation device
Grant 4,042,338 - Huber August 16, 1 | 1977-08-16 |
Electrical signal noise suppressing apparatus
Grant 3,978,348 - Henninger , et al. August 31, 1 | 1976-08-31 |
Connecting device for connecting chromatographic separating columns of glass
Grant 3,973,792 - Gonner August 10, 1 | 1976-08-10 |
Chopper arrangement for atomic absorption spectrophotometer
Grant 3,901,601 - Lahmann August 26, 1 | 1975-08-26 |
Method and apparatus for photometric analysis of substantially colorless components of sample
Grant 3,874,794 - Schmitt , et al. April 1, 1 | 1975-04-01 |
Circuit Arrangement For Base Line Compensation
Grant 3,800,236 - Riethmuller , et al. March 26, 1 | 1974-03-26 |
Method And Apparatus For Collecting And Introducing A Sample Into An Analytical Instrument
Grant 3,797,318 - Palm March 19, 1 | 1974-03-19 |
Punch For Piercing Sample Capsules
Grant 3,783,694 - Otte , et al. January 8, 1 | 1974-01-08 |
Heated Sample Cell
Grant 3,778,156 - Schmedes , et al. December 11, 1 | 1973-12-11 |
Multi-range Signal Integrator Which Changes Range Only At Specific Times
Grant 3,774,018 - Spreitzhofer November 20, 1 | 1973-11-20 |
Circuit Arrangement Responding To A Sgnal Peak
Grant 3,634,770 - Spreitzhofer January 11, 1 | 1972-01-11 |
Readout For Moving Digitally Punched Cards
Grant 3,573,435 - Heinz , et al. April 6, 1 | 1971-04-06 |
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