Background
Methods, supporting materials, and data availability
Results
The drugs’ patent/genericized status as single formulations in the United States and Canada
The drugs’ patent/genericized status as co-formulations in the United States and Canada
Patent filings by type of protection and by country
Drug | United States | Canada | Other countries | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Patentsa
| Patentsa
| Patentsb
| |||||||||||||
Co-formulation | Compound | Formulation | Method | Process | Co-formulation | Compound | Formulation | Method | Process | Co-formulation | Compound | Formulation | Method | Process | |
Acebutolol | |||||||||||||||
Acetylsalicylic acid (aspirin) | X | X |
X
|
X
|
16
|
16
| |||||||||
Amiloride | |||||||||||||||
Amlodipine | X |
X
|
X
|
X
| X |
63
|
1
|
4
|
7
|
4
| |||||
Atenolol | |||||||||||||||
Atorvastatin | X | X |
X
| X | X | X | X | X |
50
|
4
|
53
|
39
|
39
| ||
Benazepril | X | ||||||||||||||
Bisoprolol | |||||||||||||||
Bumetanide | |||||||||||||||
Candesartan | X |
X
|
X
|
X
|
X
|
X
|
1
|
4
|
10
|
9
| |||||
Carvedilol | X | X | X |
X
|
X
|
X
|
22
|
29
|
13
| ||||||
Chlorothiazide | |||||||||||||||
Chlorthalidone | X |
X
|
31
| ||||||||||||
Clopidogrel | X | X | X | X |
11
|
44
|
44
| ||||||||
Enalapril |
3
| ||||||||||||||
Eplerenone | X | X | X |
X
|
X
|
X
|
25
|
3
|
25
|
25
| |||||
Eprosartan | X | X | X | X | X | X | X | X |
7
|
6
|
37
|
42
|
37
| ||
Felodipine | |||||||||||||||
Fluvastatin | X | X |
36
| ||||||||||||
Fosinopril |
2
| ||||||||||||||
Furosemide | |||||||||||||||
Hydrochlorothiazide | X | X |
60
| ||||||||||||
Indapamide |
X
| X |
37
| ||||||||||||
Irbesartan | X | X | X | X |
23
|
8
|
23
| ||||||||
Lisinopril |
3
| ||||||||||||||
Losartan |
X
|
X
|
2
| ||||||||||||
Lovastatin | X | X |
X
|
13
|
1
|
12
|
12
| ||||||||
Metolazone | |||||||||||||||
Metoprolol | |||||||||||||||
Nadolol | |||||||||||||||
Nebivolol | X |
X
|
1
|
31
|
4
| ||||||||||
Nifedipine | |||||||||||||||
Nimodipine | |||||||||||||||
Olmesartan | X | X |
X
|
X
|
X
|
X
|
X
|
29
|
8
|
24
|
8
|
8
| |||
Perindopril |
X
|
X
|
X
| X | X | X | X |
18
|
37
|
18
| |||||
Pitavastatin | X | X | X | X |
X
|
X
|
X
|
13
|
2
|
17
|
17
|
10
| |||
Pravastatin | X |
X
|
1
|
8
| |||||||||||
Propranolol | X | X |
X
|
X
|
10
|
10
| |||||||||
Quinapril | X | X | X |
1
|
3
|
3
| |||||||||
Ramipril | X | X | X | X |
34
|
34
|
35
| ||||||||
Rosuvastatin | X | X | X | X | X |
6
|
50
|
33
| |||||||
Simvastatin | X | X |
19
| ||||||||||||
Spironolactone | |||||||||||||||
Telmisartan | X |
X
| X | X | X | X | X | X | X |
49
|
6
|
35
|
17
|
36
| |
Torasemide | |||||||||||||||
Trandolapril | X | X | X | X |
3
|
2
| |||||||||
Triamterene | |||||||||||||||
Valsartan | X |
X
| X | X | X | X | X |
42
|
7
|
36
|
36
| ||||
Total | 18 | 5 | 20 | 18 | 10 | 14 | 2 | 18 | 14 | 9 | 523 | 120 | 536 | 338 | 200 |
All countries | |||||||||||||||
Grand totals | 555 | 127 | 574 | 370 | 219 |
Searching for polypill co-formulation patents globally: WIPO PatentScope
Discussion
INN | Latest patent grant year provided | International INPADOC family application date range | Patent numbers provided |
---|---|---|---|
Olmesartan | 1997 | 1992–2011 | EP503785, US5616599 |
Valsartan | 1995 | 1991–2010 | EP443983, US5399578 |
Candesartan | 1993 | 1991–2006 | EP459136, US5196444 |
Eprosartan | 1993 | 1990–2001 | EP403159, US5185351 |
Irbesartan | 1993 | 1990–1999 | WO9114679, US5270317 |
Atorvastatin | 1993 | 1990–2007 | EP409281, US5273995 |
Rosuvastatin | 1993 | 1992–2003 | EP521471, US5260440 |
Losartan | 1992 | 1987–1999 | EP253310, US5138069 |
Telmisartan | 1992 | 1991–2011 | EP502314 |
Fosinopril | 1991 | 1988–1995 | EP 304063, US5011930 |
Pitavastatin | 1991 | 1988–1995 | EP304063, US5011930 |
Trandolapril | 1990 | 1981–1994 | EP84164, US4933361 |
Clopidogrel | 1989 | 1982–1998 | EP99802, US4529596, EP281459, US4847265 |
Fluvastatin | 1988 | 1983–1995 | WO8402131, US4739073 |
Nebivolol | 1987 | 1984–2004 | EP145067, US4654362 |
Ramipril | 1986 | 1982–1994 | EP79022, US4587258 |
Amlodipine | 1986 | 1983–1998 | EP89167, US4572909 |
Perindopril | 1985 | 1979–1993 | EP49658, US4508729 |
Carvedilol | 1985 | 1978–1994 | DE2815926, US4503067 |
Eplerenone | 1985 | 1984–2004 | EP122232, US4559332 |
Simvastatin | 1984 | 1980–1994 | EP33538, US4444784 |
Benazepril | 1983 | 1982–1993 | EP72352, US4410520 |
Enalapril | 1983 | 1979–1998 | EP12401, US4374829 |
Lisinopril | 1983 | 1979–1998 | EP12401, US4374829 |
Quinapril | 1982 | 1981–1996 | EP49605, US4344949 |
Pravastatin | 1982 | 1980–1996 | DE3122499, US4346227 |
Felodipine | 1981 | 1978–1994 | EP7293, US4264611 |
Bisoprolol | 1981 | 1976–1993 | BE859425, US4258062 |
Lovastatin | 1980 | 1978–1998 | US4231938 |
Torasemide | 1977 | 1974–1994 | DE2516025, US4018929 |
Metoprolol | 1976 | 1932–1977 | DE2106209, US3998790 |
Nadolol | 1976 | 1971–1979 | DE2258995, US3935267, DE2421549 |
Nimodipine | 1974 | 1971–1977 | DE2117571, US3799934 |
Acebutolol | 1974 | 1967–1974 | ZA6808345, US3857952 |
Atenolol | 1974 | 1969–1975 | DE2007751, US3663607, US3836671 |
Bumetanide | 1974 | 1968–1974 | DE1964503, DE1964504, US3806534 |
Indapamide | 1971 | 1968–1969 | FR2003311, US3565911 |
Propranolol | 1970 | 1962–1967 | BE640312, BE640313, US3337628, US3520919 |
Nifedipine | 1969 | 1967–1969 | ZA6801482, US3485847 |
Amiloride | 1967 | 1962–1981 | BE639386, US3313813 |
Metolazone | 1967 | 1966–1967 | US3360518 |
Acetylsalicylic acid (aspirin) | 1966 | 1959–1964 | DE236196, US2890240, US3235583 |
Hydrochlorothiazide | 1964 | 1962–1965 | US3025292, US3163645, DE1163332, US3164588, US3043840 |
Triamterene | 1963 | 1960–1964 | US3081230 |
Chlorthalidone | 1962 | 1957–1962 | US3055904 |
Furosemide | 1962 | 1959–1964 | DE1122541, US305888 |
Spironolactone | 1961 | 1960–1961 | US3013012 |
Chlorothiazide | 1957 | 1957 | US2809194 |