Patent applications and USPTO patent grants for Fitzpatrick; John R..The latest application filed is for "vandal proof intercom system for apartment buildings".
Patent | Date |
---|---|
Vandal proof intercom system for apartment buildings Grant 7,113,578 - Unger , et al. September 26, 2 | 2006-09-26 |
Vandal proof intercom system for apartment buildings App 20040091092 - Unger, John ;   et al. | 2004-05-13 |
Lock protection system Grant 5,555,752 - Fitzpatrick September 17, 1 | 1996-09-17 |
Electronic security lock door handle Grant D346,320 - Fitzpatrick April 26, 1 | 1994-04-26 |
Sphere launching and receiving valve Grant 4,351,079 - Fitzpatrick September 28, 1 | 1982-09-28 |
Bottom Hole Pressure And Temperature Indicator Grant 3,732,728 - Fitzpatrick May 15, 1 | 1973-05-15 |
Ceramic Gate Valve Grant 3,614,061 - Fitzpatrick October 19, 1 | 1971-10-19 |
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