Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4999054 | Gold plating solutions, creams and baths | Nagendra N. Bhattacharya | 1991-03-12 |
| 4925491 | Solutions and creams for silver plating and polishing | Jack Pickthall, deceased, Terence Pickthall, executor | 1990-05-15 |
| 4832743 | Gold plating solutions, creams and baths | Jack Pickthall, deceased, by Terence Pickthall, executor | 1989-05-23 |
| 4798626 | Solutions and creams for silver plating and polishing | Jack Pickthall, deceased, by Terence Pickthall, executor | 1989-01-17 |
| 4270932 | Polishing of silver-plated articles | Harold Stern | 1981-06-02 |