Table 3.

Distribution by international patent classification section, class and subclasses, of the Immunology patents managed under the Patent Cooperation Treaty agreement during 2004–2011.

Section		Class	Subclass	Year									% 2011/ maximum
				2004	2005	2006	2007	2008	2009	2010	2011	Total
A	all			1,515	1,596	2,317	2,719	2,300	2,019	1002	902	14,370	33.17
	A01		all	80	73	74	95	96	86	81	56	1,493	58.33
			A01K	45	35	33	45	32	18	19	10	237	22.22
			A01N	28	28	15	29	39	45	33	34	251	75.55
			A01H	7	10	24	20	22	11	27	11	132	40.74
	A23		all	38	43	25	32	25	25	6	7	201	16.27
			A23L	22	22	12	17	12	15	4	5	109	22.72
	A61		all	1,395	1,440	1,688	2,590	1,908	1,859	945	875	12,700	33.78
			A61K	985	1,140	1,123	1,727	1,269	1,233	895	840	9,212	48.63
			A61P	332	230	520	782	592	581	408	420	3,865	53.70
			A61B	41	35	11	15	9	9	2	4	126	9.75
			A61L	6	15	12	14	17	19	9	10	102	58.82
			A61F	7	6	7	17	7	6	6	3	59	17.64
B	all			56	56	34	27	43	24	47	8	295	14.28
	B01		all	24	14	12	13	10	15	6	5	99	20.83
C	all			2,186	2,176	1,775	2,476	1,885	1,722	968	863	14,051	34.85
	C07		all	1,143	1,141	840	1,298	902	843	647	520	7,334	40.06
			C07K	879	877	614	803	653	655	507	467	5,455	53.12
			C07D	141	141	123	386	150	127	119	95	1,282	24.61
			C07H	91	93	77	77	63	53	32	40	526	43.01
			C07C	20	17	17	23	25	0	12	11	125	44.00
	C08		all	2	14	18	19	19	14	4	13	103	68.42
	C12		all	1,027	1,004	896	1,119	939	835	482	462	6,764	41.28
			C12N	632	613	485	644	516	472	336	289	3,987	44.87
			C12Q	297	305	316	349	331	278	163	162	2,201	46.41
			C12P	80	68	82	96	71	61	55	61	574	63.54
			C12M	13	9	6	25	11	12	9	9	94	36.00
	C40		all	10	5	15	30	19	22	16	25	142	83.33
D + E + F  + H	all			8	8	7	11	13	16	3	0	66	0.00
G	all			413	487	440	527	492	414	278	297	3,348	56.35
	G01		all	389	456	398	479	443	387	277	288	3,117	60.12
			G01N	388	452	397	474	442	384	274	286	3,097	60.33
	G06		all	23	29	37	44	47	26	4	13	223	27.65
			G06F	22	26	30	36	32	14	3	11	174	30.55
	None			0	36	530	59	168	57	25	42	917	25.00