| 1980 |
| Oseco is incorporated by eleven major rupture disk technology players |
| 1981 |
| Oseco begins manufacture of 30° STD and flat-seat FSTD rupture disks |
| 1982 |
| Oseco develops CO composite rupture disks |
| 1983 |
| Oseco rolls out its first explosion panel, the CRP |
| 1985 |
| Oseco opens facility in the Netherlands as Oseco Europe begins operations |
| 1986 |
| Oseco patents the revolutionary FAS disk |
| 1987 |
| Oseco builds and moves to new 13,000-square-foot Broken Arrow facility |
| 1988 |
| Oseco creates its first reverse-buckling disk |
| 1989 |
| Oseco doubles facility size in response to industry growth |
| 1994 |
| Oseco makes graphite disks available and begins work on a graphite successor |
| 1997 |
| Oseco announces the creation of the PLR low-pressure, reverse-buckling disk |
| 1997 |
| Oseco expands again, putting its second plant and its 5-axis laser online |
| 1998 |
| Oseco attracts world safety leader Halma Group and begins negotiations |
| 1999 |
| Oseco agrees to acquisition by Halma Group and appoints new president |
| 1999 |
| Oseco starts Oseco Asia in Singapore (the Oseco Division of Halma Asia) |
| 2000 |
| Oseco launches FLCOS disk/sensor and OTU units with versatile PRO disks |
| 2000 |
| Oseco unveils image system with new product sheets and www.oseco.com |
| 2001 |
| Oseco continues branching into new areas with sanitary FM-S and PRO-S disks |
| 2001 |
| Oseco releases GR flat-metal disk as alternative to drawbacks of graphite |
| 4/9/02 |
| Oseco Introduces New PRO-S Hygienic Rupture Disk |
| 7/02/02 |
| Latest National Board Certificates List Oseco as Best Pressure Relief Provider Based on Flow Resistance |
| 10/23/02 |
| Oseco Takes Safety to a New Level with PRO Rupture Disk |
| 12/06/02 |
| Oseco’s New Rupture Panel Ideal for Power Generation Plants |
| 3/17/03 |
| Oseco Introduces Sanitary Crevice-Free Rupture Panel |
