Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5737114 | Label having an incorporated electrochromic state-of-charge indicator for an electrochemical cell | — | 1998-04-07 |
| 5709962 | Cell tester device employing spaced apart electrochromic electrodes | — | 1998-01-20 |
| 5672440 | Cell tester device employing a cathodically depositable metal ion electrolyte solution | — | 1997-09-30 |
| 5667538 | Electrochromic thin film state-of-charge detector for on-the-cell application | — | 1997-09-16 |
| 5660950 | Electrochemical cells using a polymer electrolyte | — | 1997-08-26 |
| 5654640 | Cell tester device employing a printed transparent electrically conductive electrode | — | 1997-08-05 |
| 5525439 | Battery voltage tester for end of cell having indicator disposed on battery side | Harry R. Huhndorff | 1996-06-11 |
| 5516339 | Process for making electrochemical cells using a polymer electrolyte | — | 1996-05-14 |
| 5494496 | Battery voltage tester for end of cell | Harry R. Huhndorff | 1996-02-27 |
| 5483228 | Safety indicating device for flashlights | Timothy D. Foley | 1996-01-09 |
| 5458992 | Electrochromic thin film state-of-charge detector for on-the-cell application | — | 1995-10-17 |
| 5418085 | Battery voltage tester for end of cell | Harry R. Huhndorff | 1995-05-23 |
| 5418086 | Battery with coulometric state of charge indicator | — | 1995-05-23 |
| 5409786 | Inactive electrochemical cell having an ionically nonconductive polymeric composition activated by electrolyte salt solution | — | 1995-04-25 |
| 5246794 | Cathode collector made from carbon fibrils | George E. Blomgren | 1993-09-21 |
| 4790969 | Dry molded cathode collector for liquid cathode systems | Timothy D. Foley, Ernest D. Botos | 1988-12-13 |
| 4654280 | Nonaqueous cell employing a cathode-electrolyte solution containing a boron-containing additive | — | 1987-03-31 |
| 4516317 | Nonaqueous cell employing an anode having a boron-containing surface film | — | 1985-05-14 |
| 4440836 | Nonaqueous cell employing an anode having a boron-containing surface film | — | 1984-04-03 |