Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6395228 | Sampling and analysis system | James H. Higginbotham, Joseph H. Walker | 2002-05-28 |
| 5712481 | Process and apparatus for analysis of hydrocarbon species by near infrared spectroscopy | William T. Welch, Michael B. Sumner, Brian K. Wilt, Roy Roger Bledsoe, Jr. | 1998-01-27 |
| 5370790 | Determination of aromatics in hydrocarbons by near infrared spectroscopy | William T. Welch | 1994-12-06 |
| 5362965 | Indirect method for determining oxygenate content using near-infrared absorption spectra | — | 1994-11-08 |
| 5349188 | Near infrared analysis of piano constituents and octane number of hydrocarbons | — | 1994-09-20 |
| 5348645 | Determination of aromatics in hydrocarbons by near infrared spectroscopy | William T. Welch | 1994-09-20 |
| 5349189 | Process and apparatus for analysis of hydrocarbons by near-infrared spectroscopy | — | 1994-09-20 |
| 5243546 | Spectroscopic instrument calibration | — | 1993-09-07 |
| 5223714 | Process for predicting properties of multi-component fluid blends | — | 1993-06-29 |
| 5145785 | Determination of aromatics in hydrocarbons by near infrared spectroscopy and calibration therefor | William T. Welch | 1992-09-08 |
| 4963745 | Octane measuring process and device | — | 1990-10-16 |