Caldwell; Donald L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Caldwell; Donald L..The latest application filed is for "self-cleaning paint brush with improved plug".
- Caldwell; Donald L. - San Diego CA
- Caldwell; Donald L. - Lake Jackson TX
- Caldwell; Donald L. - Bartlesville OK
| Patent | Date |
|---|---|
| Self-cleaning paint brush with improved plug Grant 6,082,921 - Caldwell | 2000-07-04 |
| Porous separators for electrolytic processes Grant 4,464,238 - Caldwell , et al. August 7, 1 | 1984-08-07 |
| Catalytic decomposition of hypochlorite using substituted cobalt oxide spinels Grant 4,430,315 - Caldwell February 7, 1 | 1984-02-07 |
| Preparation of porous electrodes Grant 4,279,709 - McIntyre , et al. July 21, 1 | 1981-07-21 |
| Process for preparing an electrode for electrolytic cell having a coating of a single metal spinel, Co.sub.3 O.sub.4 Grant 4,142,005 - Caldwell , et al. February 27, 1 | 1979-02-27 |
| Method for heating thermoplastic elements Grant 3,929,541 - Spears , et al. December 30, 1 | 1975-12-30 |
| Source Composition For Alkali Metal Oxides And Alkaline Earth Metal Oxides Grant 3,630,673 - Mod , et al. December 28, 1 | 1971-12-28 |
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