SP

Stephen E. Petty

CO Columbia Gas Of Ohio: 3 patents #2 of 14Top 15%
CS Columbia Gas System Service: 2 patents #7 of 34Top 25%
FI First: 1 patents #8 of 14Top 60%
OU Ohio State University: 1 patents #193 of 531Top 40%
🗺 Ohio: #8,027 of 73,341 inventorsTop 15%
Overall (All Time): #524,600 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
6649062 Fluid-membrane separation 2003-11-18
6109339 Heating system Sherwood G. Talbert, David Alexander Ball, Jan B. Yates, Steve Grimes 2000-08-29
5769033 Hot water storage Ronald G. Jones 1998-06-23
5636527 Enhanced fluid-liquid contact Richard N. Christensen 1997-06-10
5546760 Generator for absorption heat pumps F. Bert Cook, Howard C. Meacham, Jr., Richard N. Christensen, Kevin R. McGahey 1996-08-20
5533362 Heat transfer apparatus for heat pumps F. Bert Cook, Howard C. Meacham, Jr., Richard N. Christensen, Kevin R. McGahey 1996-07-09
RE34747 Absorption refrigeration and heat pump system with defrost Bert F. Cook 1994-10-04
5339654 Heat transfer apparatus F. Bert Cook, Howard C. Meacham, Jr., Richard N. Christensen, Kevin R. McGahey 1994-08-23
5067330 Heat transfer apparatus for heat pumps F. Bert Cook, Howard C. Meacham, Jr., Richard N. Christensen, Kevin R. McGahey 1991-11-26
4972679 Absorption refrigeration and heat pump system with defrost F. Bert Cook 1990-11-27