Assignee
BALLARD JAMES W
3 granted patents·13 citations·filing 1978–1980
Top patents by PatentIndex Score
3 records- 0153USD254804SRoof ventBALLARD JAMES W·Filed 1978·Granted Apr 22, 1980·5 cites·1 claims
- 0229US4370876AMethods of constructing a one-piece roof vent deviceBALLARD JAMES W·Filed 1980·Granted Feb 1, 1983·5 cites·23 claims
- 0329US4214513AOne-piece roof vent device and methods of constructing and utilizing sameBALLARD JAMES W·Filed 1978·Granted Jul 29, 1980·3 cites·8 claims
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