Patents per Year
Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4602823 | Portable collapsible wheels | — | 1986-07-29 | |
| 4465321 | Compression loaded collapsible wheel | — | 1984-08-14 | |
| 4463797 | Inhibiting shrinkage pipe formation of metal casting | — | 1984-08-07 | |
| 4398308 | Energy conservation in shower bathing | — | 1983-08-16 | |
| 4398474 | Insulating structure for high temperature devices | — | 1983-08-16 | |
| 4307939 | Oscillating retroreflector | — | 1981-12-29 | |
| 4300247 | Energy conservation in shower bathing | — | 1981-11-17 | |
| 4290475 | Ingot casting | — | 1981-09-22 | |
| 4256919 | Temperature confining devices and method | — | 1981-03-17 | |
| 4231772 | Solar powered heat pump construction | — | 1980-11-04 | |
| 4199952 | Modular solar powered heat pump | — | 1980-04-29 | $952,000 |
| 4195820 | Precise thermal processing apparatus | — | 1980-04-01 | |
| 4192646 | Heat conservation in workpieces | — | 1980-03-11 | |
| 4188519 | Process and apparatus for controllably exchanging heat between two bodies | — | 1980-02-12 | |
| 4187688 | Solar powered intermittent cycle heat pump | — | 1980-02-12 | $1,220,000 |