Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6672790 | Spliced elongate member and method | — | 2004-01-06 |
| 6056453 | Method of manufacture of an electrostatic writing head having integral conductive pads | James R. Hufman, Joseph A. Chizuk, Jr., Charles F. Hurst, Derrick Arnold Kendrick, Michael A. Sprauve +1 more | 2000-05-02 |
| 5885400 | Method for joining rigid substrates at abutting lateral edges | Charles F. Hurst, Michael A. Sprauve | 1999-03-23 |
| 4830414 | Locking device for utility meters | — | 1989-05-16 |
| 4733893 | Transparent security seal | Frank P. Aadahl | 1988-03-29 |
| 4609217 | Tamper indicating cover for a gas meter | Anker J. Nielsen, Jr. | 1986-09-02 |
| D285153 | Rotating storage rack | — | 1986-08-19 |
| D285173 | Modular container for disposing caps and vials | — | 1986-08-19 |
| 4321740 | Methods and apparatus for relining service pipe | Hank Kulzer, Anker J. Nielsen, Jr. | 1982-03-30 |