Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11513047 | Methods and apparatus for determining characteristics of particles from scattered light | — | 2022-11-29 |
| 10955327 | Method and apparatus for determining particle characteristics utilizing a plurality of beam splitting functions and correction of scattered light | — | 2021-03-23 |
| 10620105 | Methods and apparatus for determining characteristics of particles from scattered light | — | 2020-04-14 |
| 10386283 | Methods and apparatus for determining particle characteristics by utilizing force on particles | — | 2019-08-20 |
| 10113945 | Method and apparatus for combining measurements of particle characteristics using light scattering and optical imaging | — | 2018-10-30 |
| 9897524 | Method and apparatus for measurement of particle characteristics using light scattering and optical imaging | Jason LaForest | 2018-02-20 |
| 9297737 | Methods and apparatus for determining characteristics of particles | — | 2016-03-29 |
| 8705040 | Methods and apparatus for determining particle characteristics by measuring scattered light | — | 2014-04-22 |
| 8634072 | Methods and apparatus for determining characteristics of particles | — | 2014-01-21 |
| 8451434 | Method and apparatus for measuring zeta potential of suspended particles | Paul J. Freud | 2013-05-28 |
| 7471393 | Methods and apparatus for determining the size and shape of particles | — | 2008-12-30 |
| 6396979 | Optical waveguide probe having variable gap focusing | Paul J. Freud | 2002-05-28 |
| 6281973 | Optical detection system and method for determining particle size distribution in an oscillating flow field | — | 2001-08-28 |
| 6177983 | Method and system for the measurement of specific characteristics of small particles | — | 2001-01-23 |
| 6164817 | Fiber optic hygrometer apparatus and method | — | 2000-12-26 |
| 6104490 | Multiple pathlength sensor for determining small particle size distribution in high particle concentrations | — | 2000-08-15 |
| 6104491 | System for determining small particle size distribution in high particle concentrations | — | 2000-08-15 |
| 6094266 | Detector for determining particle size distribution in an oscillating flow field | — | 2000-07-25 |
| 6084665 | Optical sensor for detecting the dew point of an atmosphere | — | 2000-07-04 |
| 5650571 | Low power signal processing and measurement apparatus | Paul J. Freud, Giancarlo Punis, Anthony M. Demark | 1997-07-22 |
| 5416580 | Methods and apparatus for determining small particle size distribution utilizing multiple light beams | — | 1995-05-16 |
| 5094526 | Integrated optical waveguide doppler velocimeter | Paul J. Freud | 1992-03-10 |
| 5094532 | Method and apparatus for measuring small particle size distribution | William L. Wilcock, Brian M. Ence | 1992-03-10 |
| 4648274 | Photoelastic measuring transducer and accelerometer based thereon | — | 1987-03-10 |