FAMILY OWNED AND OPERATED SINCE 1951

PATENTS

Our pioneering spirit is best demonstrated by our research and development team’s long-term commitment to continuous innovation. This mindset dates back to our founder’s invention of the first Integrated Vibratory Motor and Sandwich Screen™ Technology. Our quest to perpetually reinvent ourselves is exemplified by our ever-growing portfolio of U.S. and foreign patents.

 

The most up to date patent information for Derrick® equipment.

  1. Select product from the dropdown menu below.
  2. Patent information with appear for selected product.
Patents Revised (Sept 22)

Dual Pool 616/618

View Patent Information - Dual Pool 616-618

 

Additional Patents Pending

Dual Pool 626/628

View Patent Information - Dual Pool 626-628

Additional Patents Pending

Hyperpool

View Patent Information - Hyperpool

Additional Patents Pending

Pyramid Screens & Pyramid Plus Screens

Pyramid Screens & Pyramid Plus Screens

View Patent Information - Pyramid Screens & Pyramid Plus Screens

Dual Pool 616/618/626/628

The following Dual Pool 616/618/626/628 screen part numbers are patented under the below patent numbers: PMD600 DX-A200, PMD600 DX-A170, PMD600 DX-A140, PMD600 DX-A120, PMD600 DX-A100, PMD600 DX-A80, PMD600 DX-A70, PMD600 DX-A60, PMD600 DX-A50, PMD600 DX-A45, PMD600 DX-A40, PMD600 DX-A35, PMD600 DF-A325, PMD600 DF-A270, PMD600 DF-A230, PMD600 DF-A20, PMD+600 DX-A200, PMD+600 DX-A170, PMD+600 DX-A140, PMD+600 DX-A120, PMD+600 DX-A100, PMD+600 DX-A80, PMD+600 DX-A70, PMD+600 DX-A60, PMD+600 DX-A50, PMD+600 DX-A45, PMD+600 DX-A40, PMD+600 DX-A35, PMD+600 DF-A325, PMD+600 DF-A270, PMD+600 DF-A230, PMD+600 DF-A20


The above screen part numbers are used with the Dual Pool 616/618/626/628 machines. See Dual Pool 616/618 and Dual Pool 626/628 Patents.

Hyperpool

The following Hyperpool screen part numbers are patented under the below patent numbers: PMDHYP DX-A200, PMDHYP DX-A170, PMDHYP DX-A140, PMDHYP DX-A120, PMDHYP DX-A100, PMDHYP DX-A80, PMDHYP DX-A70, PMDHYP DX-A60, PMDHYP DX-A50, PMDHYP DX-A45, PMDHYP DX-A40, PMDHYP DX-A35, PMDHYP DF-A325, PMDHYP DF-A270, PMDHYP DF-A230, PMDHYP DF-A200, PMDHYP DF-A20, PMD+HYP DX-A200, PMD+HYP DX-A170, PMD+HYP DX-A140, PMD+HYP DX-A120, PMD+HYP DX-A100, PMD+HYP DX-A80, PMD+HYP DX-A70, PMD+HYP DX-A60, PMD+HYP DX-A50, PMD+HYP DX-A45, PMD+HYP DX-A40, PMD+HYP DX-A35, PMD+HYP DF-A325, PMD+HYP DF-A270, PMD+HYP DF-A230, PMD+HYP DF-A200, PMD+HYP DF-A20


The above screen part numbers are used with the Hyperpool machines. See Hyperpool Patents.

Additional Patents Pending

Polyweb Urethane Screens

The following Urethane Screen part numbers are patented:

View Patent Information - Polyweb

Polyweb WS Urethane Screens

WS56-30x53, WS56-30x63, WS56-30x75, WS56-30x90, WS56-30x100, WS56-30x125, WS56-30x150, WS56-30x180, WS56-30x210, WS56-30x230, WS56-30x250, WS56-30x300, WS56-30x350, WS56-30x390, WS56-30x430, WS56-30x500, WS56-30x600, WS56-30x1400

Polyweb DFTB Urethane Screens

DFTB42-40x104, DFTB42-40x135, DFTB42-40x180, DFTB42-40x500, DFTB42-40x1.2SQ, DFTB42-40x2.0SQ, DFTB42-40x3.5SQ, DFTB42-40x8.0SQ

Polyweb MP Urethane Screens

MP48-30x269, MP48-30x285, MP48-30x360, MP48-30x414, MP48-30x437, MP48-30x465, MP48-30x475, MP48-30x503, MP48-30x650, MP48-30x1041, MP48-30x2235

Additional Patents Pending

Trilogy Screens

The following Trilogy Screen part numbers are patented under the below patent numbers:

SPMD600-A104BB, SPMD700-A25BA, SPMD700-A35BA, SPMD700-A81BB, SPMD700-A87BB, SPMD700-A90BB, SPMDDHP-A104BB, SPMDDHP-A25AA, SPMDDHP-A25BA, SPMDDHP-A25BB, SPMDDHP-A35AA, SPMDDHP-A35BA, SPMDDHP-A45BA, SPMDDHP-A90BB, SPMDHYP-A104BB, SPMDHYP-A120A, SPMDHYP-A200A, SPMDHYP-A200AA, SPMDHYP-A200B, SPMDHYP-A200BA, SPMDHYP-A25A, SPMDHYP-A25AA, SPMDHYP-A30AA, SPMDHYP-A30BA, SPMDHYP-A32AA, SPMDHYP-A35A, SPMDHYP-A35AA, SPMDHYP-A35BA, SPMDHYP-A40BA, SPMDHYP-A45BA, SPMDHYP-A50AA, SPMDHYP-A50B, SPMDHYP-A50BA, SPMDHYP-A74BB

(AR): AR091151B1, AR100242B3 (ARIPO): AP 5605  (AU): 2018204571, 2018256563, 2020204620 (BO): 089/2018 (BR): BR112014029429-1, BR112016025640-9, BR122020012127-0, BR122020012131-9, BR122020012134-3 (CA): 2,874,139, 2,947,714, 3032719 (CL): 57.451, 62.890 (CN): ZL201380039344.7, ZL201580022289.X, ZL201320292022.0, ZL 201811081568.5 (CO): 14278728, 800.176.089.2 (EPO): 2861358 (EURASIA): 038742, 039584, 039593 (DE): 2861358 (IN): 327605 (ID): IDP000060868, IDP000071875 (IE): 2861358 (MY): MY-178302-A (MX): 378314, MX/a/2014/014407 (Nigeria): 005081, NG/PT/C/2014/738, RP D/P/2016/393 (NO): 2861358 (OAPI): 17112, 18069 (PE): 001932-2019/DIN-INDECOPI (PL): 2861358 (SA): 5407, 5669, 5820, 6638 (ZA): 2014/09274, 20160640, 2018/06102 (TR): 2861358 (UA): 120028 (GB): 120028 (US): 7578394, 8443984, 9370798, 9056335, 9144825, 9346081, 8910796, 10960438, 11000882, 11161150, 10046363, 10933444, 10981197, 9409209, 9884344, 10259013, 10835926, 10843230, 10967401

Additional Patents Pending

Oil Lube Motors

SG2, SG3, W, W2

(Canada): 2451688 (China): 2814770.7 (Chile): 49.199 (EPO): 1417742 (Turkey): TR 2010 03452 T4 (Italy): 1339645 (Sweden): 2744851.3 (BR): Pl0211219-1

SuperStack

View Patent Information - SuperStack

Additional Patents Pending

 

G-Vault Urethane Interstage Screen

(AR): 94262, 94263, AR091151B1, AR100242B3 (ARIPO): AP/D/01076, AP 5605 (AU): 201817300, 201911273, 2018204571, 2018256563, 2018281297, 2020204620 (BO): 089/2018 (BR): BR302019004831-0, BR112014029429-1, BR112016025640-9, BR122020012127-0, BR122020012131-9, BR122020012134-3 (CA): 185117, 2,874,139, 2,947,714 (CL): 9,777, 57.451, 62.890, 03555-2019 (CN): ZL201920520349.6, ZL202020901557.3, ZL201830697531.X, ZL201380039344.7, ZL201580022289.X, ZL201320292022.0 (CO): 10710, 14278728, 800.176.089.2 (DE): 2861358 (EC): DI-2020-040 (EP): 2861358 (ET): ET/ID/18/2923, ET/UM/18/3016 (FI): 26182, FI12517, 12523 (GB): 120028 (GH): AP/D/01076 (ID): IDD000053981, IDD000054262, IDP000060868, IDP000071875 (EURASIA): 039593 (IE): 2861358 (IN): 327605 (KZ): 3117 (KR): 30-1041509-0001, 30-1041509-0002 (KG): 98 (MN): 30-0002934, 6524 (MX): 59038, 378314 (MY): MY 18-01301-0101, MY 18-01300-0101, MY-178302-A (MZ): AP/D/01076 (NA): AP/D/01076 (NG): 005081, NG/PT/C/2014/738, RP D/P/2016/393(NO): 2861358 (NZ): 426846, 759848 (OAPI): 06275, 19382, 17112, 18069 (PA): 92463-1 (PE): 001947-2019/DIN-INDECOPI, 001948-2019/DIN-INDECOPI, 001932-2019/DIN-INDECOPI (PL): 2861358 (PH): 3-2018-001207, 3-2018-001206 (RU): 115728, 115725, 2749859 (SA): 5407, 5669, 5820, 6638 (SD): AP/D/01076 (SE): 84378 (TH): 1802005274, 1802005273 (TW): D203476, D206246, M585171 (TZ): AP/D/01076 (TR): 2018 07346, 2861358, 2018/20225 (UA): 120028 (US): D915484, 8561803, 7578394, 8443984, 9370798, 9056335, 9144825, 9346081, 8910796, 10960438, 11000882, 10046363, 10933444, 10981197, 9409209, 9884344, 10259013, 10835926, 10843230, 10967401 (UZ): SAP 01953 (VN): 31749 (ZA): 2014/09274, 20160640, 2018/06102 (ZW): AP/D/01076V

Additional Patents Pending

Centrifuge

The following Centrifuge part numbers are patented under the below patent numbers:

DE 1000 VFD & DE 7200

(CN): ZL201480049715.4, (EPO): 3431183, (RU): 2690440, (US): 9,283,572, (CA): 2,921,684

Sending