| DISMOUNTED MEDICAL & SUPPLEMENTAL OXYGEN SYSTEM (DMOS) (K130068) | Essex Industries, Inc. D/B/A Essex Cryogenics of M | 2013-07-19 |
| MOUNTED MEDICAL OXYGEN SYSTEM (K113767) | Essex Industries, Inc. | 2012-06-29 |
| PRECISION LIQUID OXYGEN SYSTEM (K103324) | Precision Medical, Inc. | 2011-04-21 |
| MASS OXYGEN DISTRIBUTION SYSTEM (MODS) MODEL 10C-0061-3 (K101272) | Essex Industries, Inc. | 2010-08-20 |
| GOLOX-93 (K081779) | Respironics, Inc. | 2008-09-19 |
| MODIFICATION TO: SPIRIT (K080023) | Caire, Inc. | 2008-06-16 |
| RESPIRONICS GOLOX (K072723) | Respironics, Inc. | 2008-03-20 |
| COPD LIQUID OXYGEN PORTABLE, MODEL 300P (K072011) | Copd Partners, Inc. | 2007-10-18 |
| BACKPACK MEDICAL OXYGEN SYSTEM (K071581) | Essex Cryogenics of Missouri, Inc. | 2007-07-11 |
| SPIRIT, MODEL HAS (K050153) | Caire, Inc. | 2005-04-15 |
| PLIX (K050414) | Respironics, Inc. | 2005-04-11 |
| PRECISION LIQUID OXYGEN SYSTEM (K041122) | Precision Medical, Inc. | 2004-10-04 |
| LIQUID OXYGEN SYSTEM (K032143) | Micro Technology Services, Inc. | 2004-03-30 |
| NEXT GENERATION PORTABLE THERAPEUTIC LIQUID OXYGEN SYSTEM (K033000) | Essex Cryogenics of Missouri, Inc. | 2004-03-22 |
| SPIRIT 300 (K013251) | Caire, Inc. | 2001-12-18 |
| PURITAN-BENNETT HELIOS PORTABLE LIQUID OXYGEN SYSTEM (K993220) | Puritan Bennett Corp. | 1999-10-22 |
| PROTEGE LIQUID OXYGEN SYSTEM (K971545) | Healthdyne Technologies, Inc. | 1997-07-25 |
| PORTABLE LIQUID OXYGEN UNIT AND STATIONARY LIQUID OXYGEN UNIT (K963956) | Southern Research, Inc. | 1996-12-09 |
| LIQUID OXYGEN STORAGE SUBSYSTEM (K941819) | Hogan & Hartson | 1994-05-23 |
| PURITAN-BENNETT COMPANION 550 LIQUID OXYGEN PORTABLE UNIT (K933930) | Puritan Bennett Corp. | 1994-03-21 |
| MOBILAIRE LIQUID OXYGEN SYSTEMS (K926267) | Invacare Corp. | 1993-08-31 |
| PURITAN-BENNETT COMPAN EMT W/REMOTE LIQ LEV GUAGE (K903140) | Puritan Bennett Corp. | 1990-09-05 |
| PURITAN-BENNETT COMPANION EMT LIQUID OXYGEN (K895387) | Puritan Bennett Corp. | 1990-01-24 |
| VOYAGER PX (K895082) | Smith-Perry Corp. | 1990-01-09 |
| HI FLOW 50 (K882328) | Minnesota Valley Engineering, Inc. | 1988-06-28 |
| PORTABLE THERAPEUTIC LIQUID OXYGEN UNIT (K880183) | Essex Cryogenics of Missouri, Inc. | 1988-04-14 |
| LIBERATOR 53/STROLLER 50 (K880101) | Minnesota Valley Engineering, Inc. | 1988-02-29 |
| HI FLOW PORTABLE LIQUID OXYGEN UNIT (K875352) | Minnesota Valley Engineering, Inc. | 1988-02-29 |
| NOMAD (BASE UNIT/PORTABLE UNIT) (K872449) | Minnesota Valley Engineering, Inc. | 1987-07-21 |
| ECONOL (PORTABLE) ECONO 30 & 40 LITER BASE UNIT (K864280) | Smith-Taylor Mfg. Co., Div. Allied Medical Corp. | 1987-01-28 |
| PORTABLE LIQUID OXYGEN UNIT (MODIFICATION) (K863978) | Penox Technologies, Inc. | 1986-12-15 |
| CSI LIQUID OXYGEN SYSTEM (K863556) | Cryogenic Services, Inc. | 1986-10-15 |
| SWIVEL COUPLER (K863205) | Venmill Swivel, Co. | 1986-10-02 |
| CTC 30, 40, 1 LIQUID OXYGEN LITERS (K860738) | Cryodyne Technologies, Inc. | 1986-08-06 |
| COMPANION LIQUID OXYGEN SYSTEM (K861503) | Puritan Bennett Corp. | 1986-06-25 |
| MARK 4 LIQUID OXYGEN SYSTEM (K860937) | Puritan Bennett Corp. | 1986-03-20 |
| PENOX HIGH FLOW MANIFOLD (K853775) | Penox Technologies, Inc. | 1985-11-29 |
| RESERVIOR-MASTERAIR PORTABLE-FREEDOMAIR (K853083) | Home Medical Supply, Inc. | 1985-09-03 |
| STROLLER SPRINT (K841808) | Cryogenic Assoc. | 1984-05-16 |
| LIQUID OXYGEN SYSTEM (K840534) | The John Bunn Co. | 1984-03-02 |
| INSPIRON LIQUID OXYGEN SYSTEM (K834290) | Inspiron Corp. | 1984-02-04 |
| PULSAIR I & II (K833994) | Cryo Corp. | 1983-12-12 |
| MARK III OXYGEN WALKER SYS. RESERVOIR (K832143) | Linde Div. Union Carbide Corp. | 1983-08-26 |
| MARK III OXYGEN WALKER SYS-LOW PRESS (K830337) | Union Carbide Corp. | 1983-03-17 |
| LIQUID OXYGEN SYSTEM (K830498) | Puritan Bennett Corp. | 1983-03-10 |
| MARK III OXYGEN WALKER SYSTEM (K820836) | Union Carbide Corp. | 1982-04-15 |
| UNIT, LIQUID, OXYGEN, PORTABLE (K813453) | Pensee Medical Corp. | 1982-01-12 |
| LINDE MARK II (K812536) | Union Carbide Corp. | 1981-09-23 |
| FLOWLOCK OXYGEN METER (K811162) | Lifeguard Medical Products, Inc. | 1981-05-08 |
| LINDE MARK II OXYGEN RESERV. TYPE OR-4 (K810732) | Union Carbide Corp. | 1981-03-27 |
| LIBERATOR/STROLLER II SYSTEM (K800742) | Cryogenic Assoc. | 1980-05-23 |
| LINDE OXYGEN WALKER SYS. MARK II-L (K791902) | Union Carbide Corp. | 1979-10-17 |
| TRAVELAIR AND STATIONAIR (K780496) | Cryomed Corp. | 1978-04-18 |
| LIQUID OXYGEN UNIT, PORTABLE 73BYJ (K780098) | Andonian Cryogenics, Inc. | 1978-03-02 |
| LIBERATOR/STROLLER (K760787) | Burditt & Calkins-Siemens-Elema | 1976-10-22 |