Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258306 | Method for adjustment of adjustable mold gate | — | 2001-07-10 |
| 6171094 | Universal mold | — | 2001-01-09 |
| 6106261 | Apparatus for molding a one-piece article in a single molding operation using two different plastic materials | — | 2000-08-22 |
| 6106265 | Stack mold centering system | — | 2000-08-22 |
| 6098833 | Plastic bucket and lid | by John W. von Holdt, Jr., executor | 2000-08-08 |
| 5913446 | Plastic bucket and lid | John W. Von Holdt | 1999-06-22 |
| 5842593 | Two part plastic container lid | — | 1998-12-01 |
| 5798130 | Adjustable mold gate | — | 1998-08-25 |
| 5780077 | Adjustable mold gate for a hot probe member | — | 1998-07-14 |
| 5380184 | Injection mold having a rotatable sprue member | — | 1995-01-10 |
| 5275778 | Multiple cavity injection molding | — | 1994-01-04 |
| 5262116 | Modular molding system | — | 1993-11-16 |
| 5169655 | Multiple cavity injection mold | — | 1992-12-08 |
| 4881715 | Safety lift lock with internal member | — | 1989-11-21 |
| 4856977 | Two stage mold centering system | — | 1989-08-15 |
| 4808106 | Flex gate | — | 1989-02-28 |
| 4775130 | Mold with wear member | — | 1988-10-04 |
| 4756865 | Rear opening mold process | — | 1988-07-12 |
| 4753415 | Safety lift lock | — | 1988-06-28 |
| 4731014 | Rear opening mold | — | 1988-03-15 |
| 4706926 | Safety mold lift lock | — | 1987-11-17 |
| 4706838 | Molded pull fitting | — | 1987-11-17 |
| 4702456 | Mold pin lock | — | 1987-10-27 |
| 4648834 | Mold for manufacturing flanged objects without side action | — | 1987-03-10 |
| 4632357 | Mold for making a bucket with bail | — | 1986-12-30 |