Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9677998 | Control over etching molecule levels in etching compositions | Amy M. Tseng, Robert M. Mack | 2017-06-13 |
| 9500522 | Apparatus and method for detection of electromagnetic radiation using optical switches in an RF network | Deborah Mechtel, Peter Joyce, Samara Firebaugh, Adam Edward Goetz | 2016-11-22 |
| 8945939 | Control over hydrogen fluoride levels in oxide etchant | Amy M. Tseng, Robert M. Mack | 2015-02-03 |
| 8932874 | Control over ammonium fluoride levels in oxide etchant | Amy M. Tseng, Robert M. Mack | 2015-01-13 |
| 8753896 | Method of monitoring a surfactant in a microelectronic process by fluorescence | John E. Hoots, Amy M. Tseng | 2014-06-17 |
| 8716028 | Control over hydrogen fluoride levels in oxide etchant | Amy M. Tseng, Robert M. Mack | 2014-05-06 |
| 8372651 | Method of monitoring a surfactant in a microelectronic process by absorbance | Amy M. Tseng, John E. Hoots | 2013-02-12 |
| 6238487 | Method for improving the efficiency of semiconductor chip production | John E. Hoots | 2001-05-29 |
| 6140130 | Detection and removal of copper from wastewater streams from semiconductor and printed circuit board processing | Kristine S. Salmen, Angela S. Kowalski, John E. Hoots | 2000-10-31 |
| 5922606 | Fluorometric method for increasing the efficiency of the rinsing and water recovery process in the manufacture of semiconductor chips | John E. Hoots | 1999-07-13 |
| 5658798 | Detection of process components in food process streams by fluorescence | Gregory K. Bertin, Theresa P. Cawley, John E. Hoots, Christine Stuart, Terry L. Stuebner | 1997-08-19 |
| 5304800 | Leak detection and responsive treatment in industrial water processes | John E. Hoots, Philip M. Eastin, Eric R. Brundage | 1994-04-19 |