Inventor
John H. Wiernik
Inventor
Pittsburgh, PA, US
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge100%
PatentTitleYear
5,078,879'Method for controlling silica/silicate deposition in aqueous systems using 2-phosphonobutane tricarboxylic acid-1,2,4 and anionic polymers'19924,933,090'Method for controlling silica/silicate deposition in aqueous systems using phosphonates and carboxylic/sulfonic polymers'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1992Patents assigned to CALGON CORP (2)· patent assignee history
1990–1992Based in Pittsburgh, PA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CALGON CORP | 2 | 1990–1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Pittsburgh, Pennsylvania, US | 2 | 1990–1992 |