Douglas B. Evans — 15 Patents at Digimarc

Douglas B. Evans has been granted 15 US patents while listed as an inventor at Digimarc. The first was granted in 1986 and the most recent in January 2025. Douglas B. Evans ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Douglas B. Evans in Twentynine Palms, CA, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12201050	Rotational sprouter system	Paul Naddaff, Joel Schwarzbart, Ashley James Nye Legg	2025-01-21
11895940	Rotational sprouter system	Paul Naddaff, Joel Schwarzbart, Ashley James Nye Legg	2024-02-13
8036420	Substituting or replacing components in sound based on steganographic encoding	William Y. Conwell	2011-10-11	$344,000
7965864	Data transmission by extracted or calculated identifying data	Bruce L. Davis, William Y. Conwell, Geoffrey B. Rhoads	2011-06-21	$545,000
7773770	Substituting or replacing components in media objects based on steganographic encoding	William Y. Conwell	2010-08-10	$1,162,000
7545951	Data transmission by watermark or derived identifier proxy	Bruce L. Davis, William Y. Conwell, Geoffrey B. Rhoads	2009-06-09	$418,000
7505605	Portable devices and methods employing digital watermarking	Geoffrey B. Rhoads, Bruce L. Davis	2009-03-17	$443,000
7362879	Substituting objects based on steganographic encoding	William Y. Conwell	2008-04-22	$1,419,000
7209573	Substituting images in copies based on digital watermarks	William Y. Conwell	2007-04-24	$716,000
7171018	Portable devices and methods employing digital watermarking	Geoffrey B. Rhoads, Bruce L. Davis	2007-01-30	$592,000
6965682	Data transmission by watermark proxy	Bruce L. Davis, William Y. Conwell, Geoffrey B. Rhoads	2005-11-15
6917691	Substituting information based on watermark-enable linking	William Y. Conwell	2005-07-12	$702,000
6577746	Watermark-based object linking and embedding	William Y. Conwell	2003-06-10	$3,886,000
D283896	Alternator stand	Robert G. Symonds	1986-05-20
D283326	Engine fan housing	Robert G. Symonds	1986-04-08

Douglas B. Evans — 15 Patents

Issued Patents All Time

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