| Year | Name of President | Association Name |
| 2006/2007 | Jan Comfort, Clemson, SC | PTDLA |
| 2005/2006 | Nan Myers, Wichita, KS | PTDLA |
| 2004/2005 | Charlotte Erdmann, West Lafayette, IN | PTDLA |
| 2003/2004 | Thomas Melvin, Newark, DE | PTDLA |
| 2002/2003 | Claudine Jenda, Auburn, AL | PTDLA |
| 2001/2002 | Claudine Jenda, Auburn, AL | PTDLA |
| 2001/03-05 | Julia Crawford, Stillwater, OK | PTDLA |
| 2000/2001 | Jane Running, Springfield, IL | PTDLA |
| 1999/2000 | Dave Morrison, Salt Lake City, UT | PTDLA |
| 1998/1999 | Carol Giles, St. Louis, MO | PTDLA |
| 1997/1998 | Donna Hanson, Moscow, ID | PTDLA |
| 1996/1997 | Robert C. Williams, Anchorage, AK | PTDLA |
| 1995/1996 | Jennifer Pastenbaugh, Stillwater, OK | PTDLA |
| 1994/1995 | Kevin Harwell, University Park, PA | PTDLA |
| 1993/1994 | Diane Richmond, Chicago, IL | PTDLA |
| 1992/1993 | Neil Massong, Detroit, MI | PTDLA |
| 1991/1992 | Tom Andersen, Sacramento, CA | PTDLA |
| 1990/1991 | Rosemary Dahmann | PDLA (Patent Depository Library Association) |
| 1989/1990 | Ted Cebula, Milwaukee, WI | PDLA |
| 1988/1989 | Jeanne Oliver, Springfield, IL | PDLA |
| 1987/1988 | Billie Connor, Los Angeles, CA | PDLA |
| 1986/1987 | John Phillips, Stillwater, OK | PDLAC (Patent Depository Library Advisory Council) |
| 1985/1986 | Barbara Kile, Houston, TX | PDLAC |
| 1984/1985 | Jim Arshem, Denver, CO | PDLAC |
| 1983/1984 | Charles Wilt, Philadelphia, PA | PDLAC |
| Sept. 1983 | All Libraries | PDLAC officially formed |
| 1977-1982 | All Libraries | USPTO/Patent Depository Libraries Annual Meetings with USPTO |
| 1977 | All Libraries | First Annual Meeting of Patent Depository Libraries with USPTO |