Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE39472 | Golf putter having improved marking | Stephen C. Ahn | 2007-01-16 |
| 6409610 | Golf putter having improved marking | Stephen C. Ahn | 2002-06-25 |
| 6045452 | Golf putter with horizontal concavity in striking face | Stephen C. Ahn | 2000-04-04 |
| 6015354 | Golf club with adjustable total weight, center of gravity and balance | Stephen C. Ahn | 2000-01-18 |
| 5031549 | Method of introducing air into a rotary combustor | William G. Collins, Jr. | 1991-07-16 |
| 4961390 | Perforated plugs for air holes in a rotary combustor | Graham A. Whitlow | 1990-10-09 |
| 4889059 | Rotary combustor wall and method of forming same | Graham A. Whitlow | 1989-12-26 |
| 4889058 | Heat recovery boiler | Wen Yang, Bozorg Ettehadieh | 1989-12-26 |
| 4870912 | Automatic combustion control method for a rotary combustor | — | 1989-10-03 |
| 4862813 | High temperature gas cleaning in municipal solid waste incineration systems | George B. Levin, James H. Moritz | 1989-09-05 |
| 4782766 | Automatic combustion control for a rotary combustor | William G. Collins, Jr., John Healy | 1988-11-08 |
| 4782768 | Rotary combustor with efficient air distribution | Graham A. Whitlow | 1988-11-08 |
| 4782769 | Apparatus for preventing clogging of rotary combustors by low-melting temperature metal | George B. Levin | 1988-11-08 |
| 4745869 | Method and apparatus for calcining limestone using coal combustion for heating | James A. Dilmore, William E. Young, Wesley M. Rohrer, Jr. | 1988-05-24 |