Patent Theme

Advanced Audio Signal Processing

Techniques for enhancing, encoding, decoding, or separating speech and audio signals, often involving multi-microphone arrays, acoustic echo cancellation, beamforming, or advanced audio compression for improved clarity and quality.

12,880 US filings from 1,722 companies since 2023 · 2023: 3,453 · 2024: 4,039 · 2025: 3,827 · 2026 YTD: 1,561

Speech Processing

Top companies

Ranked by filings in this theme since 2023. 2026 is partial.

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.	503	136	191	138	38	-27.7%
2	GOOGLE LLC	486	134	161	137	54	-14.9%
3	Dolby International AB	452	114	150	153	35	+2.0%
4	DOLBY LABORATORIES LICENSING CORPORATION	434	97	147	154	36	+4.8%
5	SAMSUNG ELECTRONICS CO., LTD.	429	128	103	136	62	+32.0%
6	Huawei Technologies Co., Ltd.	368	85	113	123	47	+8.8%
7	Sonos, Inc.	319	73	112	101	33	-9.8%
8	Apple Inc.	270	77	85	79	29	-7.1%
9	SONY GROUP CORPORATION	246	59	95	63	29	-33.7%
10	Amazon Technologies, Inc.	244	70	85	68	21	-20.0%
11	Nokia Technologies Oy	241	54	82	81	24	-1.2%
12	Nippon Telegraph and Telephone Corporation	203	73	78	50	2	-35.9%
13	QUALCOMM Incorporated	200	44	71	61	24	-14.1%
14	Microsoft Technology Licensing, LLC	172	36	64	48	24	-25.0%
15	HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED	154	39	44	50	21	+13.6%
16	Telefonaktiebolaget LM Ericsson (publ)	144	35	45	44	20	-2.2%
17	Shure Acquisition Holdings, Inc.	128	39	39	39	11	0.0%
18	Bose Corporation	124	29	41	43	11	+4.9%
19	TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED	120	24	48	33	15	-31.2%
20	YAMAHA CORPORATION	113	44	34	23	12	-32.4%
21	ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE	106	30	32	31	13	-3.1%
22	International Business Machines Corporation	96	36	36	22	2	-38.9%
23	SHENZHEN SHOKZ CO., LTD.	95	18	34	29	14	-14.7%
24	AAC Microtech (Changzhou) Co., Ltd.	94	22	33	28	11	-15.2%
25	Oticon A/S	87	20	29	23	15	-20.7%